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Chapter 11: i

Chapter 11: VHF (136-174 MHz) 25-45W LDMOS Service Information Table of Contents
Section 1 Model Charts and Technical Specifications

1.0 VHF (136-174 MHz) 25-45W LDMOS Model Charts......................................11:1-1 1.1 CDM Series Model Chart ..........................................................................11:1-1 1.2 PRO Series Model Chart...........................................................................11:1-2 2.0 Technical Specifications .................................................................................11:1-2

Section 2

Theory of Operation

1.0 Introduction .....................................................................................................11:2-1 2.0 VHF (136-174 MHz) 25-45W LDMOS Receiver Front-End ............................11:2-1 2.1 Receiver Front-End ...................................................................................11:2-1 2.2 Front-End Bandpass Filters and Pre-Amplifier..........................................11:2-2 2.3 First Mixer and 1st Intermediate Frequency (IF) .......................................11:2-2 2.4 2nd Intermediate Frequency (IF) and Receiver Back-End ........................11:2-2 3.0 VHF (136-174 MHz) 25-45W LDMOS Transmitter Power Amplifier (PA) 45W ........................................................................................................11:2-3 3.1 Power Controlled Stage ............................................................................11:2-3 3.2 Driver Stage ..............................................................................................11:2-4 3.3 Final Stage ................................................................................................11:2-4 3.4 Antenna Switch .........................................................................................11:2-4 3.5 Harmonic Filter ..........................................................................................11:2-5 3.6 Directional Coupler....................................................................................11:2-5 3.7 Power Control............................................................................................11:2-5 4.0 VHF (136-174 MHz) 25-45W LDMOS Frequency Synthesis..........................11:2-5 4.1 Reference Oscillator..................................................................................11:2-6 4.2 Fractional-N Synthesizer ...........................................................................11:2-6 4.3 Voltage Controlled Oscillator (VCO)..........................................................11:2-7 4.4 Synthesizer Operation...............................................................................11:2-8

Section 3
1.0 2.0 3.0 4.0

Troubleshooting Charts

Troubleshooting Flow Chart for Receiver .......................................................11:3-1 Troubleshooting Flow Chart for 45W Transmitter...........................................11:3-3 Troubleshooting Flow Chart for Synthesizer...................................................11:3-6 Troubleshooting Flow Chart for VCO..............................................................11:3-7

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Chapter 11: ii

Section 4

VHF (136-174 MHz) 25-45W LDMOS PCBs, Schematics, and Parts Lists

1.0 Allocation of Schematics and Circuit Boards ................................................. 11:4-1 1.1 Controller Circuits ..................................................................................... 11:4-1 2.0 VHF (136-174 MHz) 25-45W LDMOS PCB 8486140B15, Schematics, and Parts Lists................................................................................................................ 11:4-3

6881091C63-A

Chapter 11: 1-1

Section 1 MODEL CHARTS AND TECHNICAL SPECIFICATIONS
1.0
1.1

VHF (136-174 MHz) 25-45W LDMOS Model Charts
CDM Series Model Chart

CDM Series, VHF (136-174 MHz) 25-45W LDMOS
Model AAM25KKC9AA1AN AAM25KKD9AA2AN AAM25KKF9AA5AN Item X X X X X X X X X X X X X X X X X X X X X X X X X X X GCN6112 GCN6113 GCN6114 IMUD6015 IMUD6015_S HAD4006 HAD4007 HAD4008 HAD4009 HAD4014 6881091C54 6881091C55 6881091C56 Control Head, CDM750 Control Head, CDM1250 Control Head, CDM1550 Tanapa, VHF 136-174 MHz, 25-45W, 12.5/20/25 kHz Replacement Board, VHF 136-174 MHz, 25-45W, 12.5/20/25 kHz Antenna, 136-144 MHz, 1/4 Wave Roof Mount (Mini U) Antenna, 146-150.8 MHz, 1/4 Wave Roof Mount (Mini U) Antenna, 150.8-162 MHz, 1/4 Wave Roof Mount (Mini U) Antenna, 162-174 MHz, 1/4 Wave Roof Mount (Mini U) Antenna, 146-172 MHz, 3dB Gain Roof Mount (Mini U) User Guide, CDM750 User Guide, CDM1250 User Guide, CDM1550 Description CDM750, 136-174 MHz, 25-45W Conv Pref (LDMOS) CDM1250, 136-174 MHz, 25-45W Conv Pref (LDMOS) CDM1550, 136-174 MHz, 25-45W Conv Pref (LDMOS) Description

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Chapter 11: 1-2

Technical Specifications

1.2

PRO Series Model Chart

PRO Series, VHF (136-174 MHz) 25-45W LDMOS
Model LAM25KKC9AA1AN LAM25KKD9AA2AN LAM25KKF9AA5AN Item X X GCN6112 GCN6113 X GCN6114 X X X IMUD6015 X X X IMUD6015_S X X X HAD4006 X X X HAD4007 X X X HAD4008 X X X HAD4009 X X X HAD4014 X X 6881091C57 6881091C58 X 6881091C59 Control Head, PRO3100 Control Head, PRO5100 Control Head, PRO7100 Tanapa, VHF 136-174 MHz, 25-45W, 12.5/20/25 kHz Replacement Board, VHF 136-174 MHz, 25-45W, 12.5/20/25 kHz Antenna, 136-144 MHz, 1/4 Wave Roof Mount (Mini U) Antenna, 146-150.8 MHz, 1/4 Wave Roof Mount (Mini U) Antenna, 150.8-162 MHz, 1/4 Wave Roof Mount (Mini U) Antenna, 162-174 MHz, 1/4 Wave Roof Mount (Mini U) Antenna, 146-172 MHz, 3dB Gain Roof Mount (Mini U) User Guide, PRO3100 User Guide, PRO5100 User Guide, PRO7100 Description PRO3100, 136-174 MHz, 25-45W, 12.5/20/25 kHz Ch Sp, Conv Pref (LDMOS) PRO5100, 136-174 MHz, 25-45W, 12.5/20/25 kHz Ch Sp, Conv Pref (LDMOS) PRO7100, 136-174 MHz, 25-45W, 12.5/20/25 kHz Ch Sp, Conv Pref (LDMOS) Description

2.0

Technical Specifications
Data is specified for +25C unless otherwise stated. General Specifications
Channel Capacity CDM750/PRO3100 CDM1250/PRO5100 CDM1550/PRO7100 Power Supply Dimensions: H x W x D (in./mm) CDM750/PRO3100 CDM1250/PRO5100 and CDM1550/PRO7100 Depth excludes knobs Weight (All CDM and PRO models) Sealing: Shock and Vibration: Dust, Salt & Fog 4 64 128 13.2Vdc (10.8 - 15.6Vdc) 25 - 45W: 2.2 in. x 6.93 in. x 7.44 in. (56 mm x 176 mm x 189 mm) 2.34 in. x 7.05 in. x 7.8 in. (59 mm x 179 mm x 198 mm) Add 0.35 in. (9mm) for Volume Knob 3.5 lb. (1590 g) Withstands rain testing per MIL STD 810 C/D/E and IP54 Protection provided via impact resistant housing exceeding MIL STD 810-C/D/E Protection provided via environment resistant housing exceeding MIL STD 810 C/D/E

6881091C63-A

Technical Specifications

Chapter 11: 1-3

Transmitter
*Frequencies - Full Bandsplit Channel Spacing Frequency Stability (-30C to +60C, +25 Ref.) Power Modulation Limiting

VHF
VHF 136-174 MHz 12.5/20/25 kHz 2.0 ppm 25-45W 2.5 @ 12.5 kHz 4.0 @ 20 kHz 5.0 @ 25 kHz -40 dB @ 12.5 kHz -45 dB @ 20/25 kHz -26 dBm <1 GHz -30 dBm >1 GHz -60 dB @ 12.5 kHz -70 dB @ 25 kHz +1 to -3 dB TIA/EIA box

FM Hum & Noise Conducted/Radiated Emission Adjacent Channel Power Audio Response (300 - 3000Hz @ 20/25 kHz) (300 - 2550Hz @12.5 kHz) Audio Distortion @1000Hz, 60% Rated Maximum Deviation

<3% typical

Receiver
*Frequencies - Full Bandsplit Channel Spacing Sensitivity (12 dB SINAD) Intermodulation

VHF
VHF 136-174 MHz 12.5/20/25 kHz 0.30 V (0.22 V typical) >65 dB (ETS) 75 dB @ 12.5 kHz (TIA) 78 dB @ 25 kHz (TIA) 65 dB @ 12.5 kHz 75 dB @ 20 kHz 80 dB @ 25 kHz 75 dB @ 12.5 kHz 80 dB @ 20/25 kHz 3W Internal 7.5W External 13W External <3% typical -40 dB @ 12.5 kHz -45 dB @ 20/25 kHz +1 to -3 dB TIA/EIA box

Adjacent Channel Selectivity

Spurious Rejection Rated Audio

Audio Distortion @ Rated Audio Hum & Noise Audio Response (300 - 3000Hz @ 20/25 kHz) (300 - 2550Hz @12.5 kHz) Conducted Spurious Emission

-57 dBm <1 GHz -47 dBm >1 GHz

*Availability subject to the laws and regulations of individual countries.

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Chapter 11: 1-4

Technical Specifications

Notes

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Chapter 11: 2-1

Section 2 THEORY OF OPERATION
1.0 Introduction
This chapter provides a detailed theory of operation for the VHF circuits in the radio. For details of the theory of operation and troubleshooting for the associated controller circuits refer to the controller section of this manual.

2.0
2.1

VHF (136-174 MHz) 25-45W LDMOS Receiver Front-End
Receiver Front-End
The receiver is able to cover the VHF range from 136 to 174 MHz. It consists of four major blocks: front-end bandpass filters and pre-amplifier, first mixer, 1st IF, 2nd IF, and receiver back-end. Two varactor-tuned bandpass filters perform antenna signal pre-selection. A passive double-balanced mixer converts the signal to the first IF of 44.85 MHz. High-side injection is used.
Pin Diode Antenna Switch Varactor Tuned Filter RF Amp Varactor Tuned Filter Mixer 1. Crystal Filter 1. IF Amp

RF Jack

Control Voltage from PCIC

First LO from FGU

2. IF Amp 2. Crystal Filter

Recovered Audio

Demodulator

Limiter

RSSI IF

Second LO Switch Switch Switch Switch 455kHz Filter (25kHz) 455kHz Filter (12.5kHz) 455kHz Filter (25kHz) 455kHz Filter (12.5kHz)

Filter Bank Selection from Synthesizer IC

Figure 11-1 VHF Receiver Block Diagram
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Chapter 11: 2-2

VHF (136-174 MHz) 25-45W LDMOS Receiver Front-End

There are two 2-pole 44.85 MHz crystal filters in the 1st IF section and 2 pairs of 455 kHz ceramic filters in the 2nd IF section to provide the required adjacent channel selectivity. The correct pair of ceramic filters for 12.5 or 25kHz channel spacing is selected via control line BWSELECT. The second IF at 455 kHz is mixed, amplified and demodulated in the IF IC. The processing of the demodulated audio signal is performed by an audio processing IC located in the controller section.

2.2

Front-End Bandpass Filters and Pre-Amplifier
The received signal from the radio's antenna connector is first routed through the harmonic filter and antenna switch, which are part of the RF power amplifier circuits, before being applied to the receiver pre-selector filter (C3001, C3002, D3001 and associated components). The 2-pole preselector filter tuned by the dual varactor diode D3001 pre-selects the incoming signal (RXIN) from the antenna switch to reduce spurious effects to following stages. The tuning voltage (FECTRL_1) ranging from 2 volts to 8 volts is controlled by pin 20 of PCIC (U3501) in the Transmitter section. A dual hot carrier diode (D3003) limits any inband signal to 0 dBm to prevent damage to the preamplifier. The RF pre-amplifier is a surface mount device (SMD) Q3001 with collector-base feedback to stabilize gain, impedance, and intermodulation. Transistor Q3002 compares the voltage drop across resistor R3002 with a fixed base voltage from divider R3011, R3000 and R3012, and adjusts the base current of Q3001 as necessary to maintain its collector current constant at approximately 1520 mA. Operating voltage is from the regulated 9.3V supply (9V3). During transmit, 9.1 volts (K9V1) turns off both transistors Q3002 and Q3001. This protects the RF pre-amplifier from excessive dissipation during transmit mode. A following 3dB pad (R3006 R3008 and R3016 R3018) stabilizes the output impedance and intermodulation performance. A second 2-pole varactor tuned bandpass filter provides additional filtering of the amplified signal. The dual varactor diode D3004 is controlled by the same signal FECTRL_1, which controls the preselector filter.

2.3

First Mixer and 1st Intermediate Frequency (IF)
The signal coming from the front-end is converted to the 1st IF frequency of 44.85 MHz using a passive double-balanced mixer (D3031). Its ports are matched for incoming RF signal conversion to the 44.85 MHz IF using high side injection. The high-side injection signal (RXINJ) from the frequency synthesizer circuit has a level of approximately +13 dBm and is injected via matching transformer T3002. The IF output signal (IF) from transformer T3001 pin 2 is fed to the first 2-pole crystal filter FL3101. The filter output in turn is matched to IF amplifier Q3101 which is actively biased by a collector base feedback (R3101, R3106) to a current drain of approximately 5 mA drawn from the 5 volt supply. Its output impedance is matched to the second 2-pole crystal filter FL3102. The signal is further amplified by a pre-amplifier (Q3102) before going into pin 1 of IFIC (U3101). A dual hot carrier diode (D3101) limits the filter output voltage swing to reduce overdrive effects at RF input levels above -27 dBm.

2.4

2nd Intermediate Frequency (IF) and Receiver Back-End
The 44.85 MHz 1st IF signal from the second IF amplifier feeds the IF IC (U3101) at pin1. Within the IF IC, the 44.85 MHz high IF signal mixes with the 44.395 MHz second local oscillator (2nd LO) to produce the 2nd IF signal at 455 kHz. The 2nd LO frequency is determined by crystal Y3101. The 2nd IF signal is amplified and filtered by an external pair of 455 kHz ceramic filters FL3112, FL3114 for 20/25 kHz channel spacing or FL3111, FL3113/F3115 for 12.5 kHz channel spacing. These pairs are selectable via BWSELECT. The filtered output from the ceramic filters is applied to the limiter input pin of the IF IC (pin 14).

6881091C63-A

VHF (136-174 MHz) 25-45W LDMOS Transmitter Power Amplifier (PA) 45W

Chapter 11: 2-3

The IF IC contains a quadrature detector using a ceramic phase-shift element (Y3102) to provide audio detection. Internal amplification provides an audio output level of 120 mV rms (at 60% deviation) from U3101 pin 8 (DISCAUDIO) which is fed to the ASFIC_CMP (U0221) pin 2 (part of the Controller circuits). A Receive Signal Strength Indicator (RSSI) signal is available at U3101, pin 5, having a dynamic range of 70 dB. The RSSI signal is interpreted by the P (U0101, pin 63) and in addition is available at accessory connector J0501-15.

3.0

VHF (136-174 MHz) 25-45W LDMOS Transmitter Power Amplifier (PA) 45W
The radio's 45W PA is a three-stage amplifier used to amplify the output from the VCOBIC to the radio transmit level. All three stages utilize LDMOS technology. The gain of the first stage (U3401) is adjustable, controlled by pin 4 of PCIC (U3501) via U3402-1. It is followed by an LDMOS driver stage (Q3421) and an LDMOS final stage (Q3441). All devices are surface mounted. A pressure pad between the board and the radio's cover provides both closure of the switch and insurance of good thermal contact between the devices and the chassis.
Antenna

From VCO Controlled Stage PA Driver PA-Final Stage Bias 2

Pin Diode Antenna Switch

Harmonic Filter Power Sense

RF Jack

ASFIC_CMP
SPI BUS PA PWR SET

Current Sense Secondary Temp Sense

Bias 1 Vcontrol To Microprocessor

PCIC

Temperature Sense To Microprocessor

Figure 11-2 VHF LDMOS Transmitter Block Diagram

3.1

Power Controlled Stage
The first stage (U3401) is a 20 dB gain integrated circuit containing two LDMOS FET amplifier stages. It amplifies the RF signal from the VCO (TXINJ). The output power of stage U3401 is controlled by a DC voltage applied to pin 1 from the power control circuit (U3501 pin 4, with operational amplifier U3402-1, pin 1). The control voltage simultaneously varies the bias of two FET stages within U3401. This biasing point determines the overall gain of U3401 and therefore its output drive level to Q3421, which in turn controls the output power of the PA. Op-amp U3402-1 monitors the drain current of U3401 via resistor R3444 and adjusts the bias voltage of U3401 so that the current remains constant. The PCIC (U3501) provides a DC output voltage at pin 4 (INT) which sets the reference voltage of the current control loop. A rising power
6881091C63-A

Chapter 11: 2-4

VHF (136-174 MHz) 25-45W LDMOS Transmitter Power Amplifier (PA) 45W

output causes the DC voltage from the PCIC to fall, and U3402-1 adjusts the bias voltage for a lower drain current to lower the gain of the stage. In receive mode the DC voltage from PCIC pin 23 (RX) turns on Q3442, which in turn switches off the biasing voltage to U3401. Switch S3440 is a pressure pad with a conductive strip, which connects two conductive areas on the board when the radio's cover is properly screwed to the chassis. When the cover is removed, S3440 opens and the resulting high voltage level at the inverting inputs of the current control op-amps U3402-1 switches off the biasing of U3401. This prevents transmitter key-up while the devices do not have proper thermal contact to the chassis.

3.2

Driver Stage
The next stage is an LDMOS device (Q3421) providing a gain of 13 dB. This device requires a positive gate bias and a quiescent current flow for proper operation. The voltage of the line MOSBIAS_1 is set during transmit mode by PCIC pin 24 and fed to the gate of Q3421 via the resistive network R3417, R3415, and R3416. This bias voltage is tuned in the factory. In receive mode, the MOSBIAS_1 supplied to Q3421 is grounded by the PCIC.

3.3

Final Stage
The final stage is an LDMOS MRF1550 device (Q3441). It provides a gain of 10 dB. This device also requires a positive gate bias and a quiescent current flow for proper operation. The voltage of the line MOSBIAS_2 is set during transmit mode by the ASFIC and fed to the gate of Q3441 via the resistive network R3404, R3406, and R3431-2. This bias voltage is tuned in the factory. If the transistor is replaced, the bias voltage must be tuned using Global Tuner Software. Care must be taken not to damage the device by exceeding the maximum allowed bias voltage. In receive mode, MOSBIAS_2 voltage is reduced to switch off Q3441. The drain current of MRF1550 is drawn from the radio DC supply via filtering beads, bypass capacitors and a current-sensing resistor (R3518). A differential DC amplifier U3503-1 compares the voltage drop across R3518, which is proportional to the transmitter final stage DC current, with the voltage across resistors R3511 and R3510, which is proportional to the current through transistor Q1503. This transistor is controlled by the output of the differential amplifier, which varies the transistor current until equilibrium of the two compared voltages is reached. The current through Q1503 develops a voltage across R3517, which is exactly proportional to the DC current of the final stage. This voltage is combined with power-sensing and temperature-sensing inputs and applied to the RFIN port of the PCIC (pin 1).

3.4

Antenna Switch
The antenna switch consists of two PIN diodes, D3471 and D3472. In receive mode, both diodes are off. Signals applied at the antenna jack J3401 are routed, via the coupler and harmonic filter, through network L3511, C3451 and C3475, to the receiver input. In transmit mode, the keyed 9 volts turns on Q3471 which enables current sink Q3472, set to 96 mA by R3473 and VR3471. This completes a DC path from A+, through L3436, R3518, L3437, L3443, D3471, L3510, L3511, D3472, L3471, and R3474 and the current sink, to ground. Both diodes are forward biased into conduction. The transmitter RF from the PA is routed via D3471, C3561 and C3563 to the harmonic filter, directional coupler and antenna jack. D3472 also conducts, shunting RF power and preventing it from reaching the receiver port (RXIN). L3511 is selected to appear as a broadband quarter-wave transmission line, making the short circuit presented by D3472 appear as an open circuit at the junction of D3472 and the receiver path.

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VHF (136-174 MHz) 25-45W LDMOS Frequency Synthesis

Chapter 11: 2-5

3.5

Harmonic Filter
Components L3512-L3515 and C3564-C3568 form a nine-pole Chebychev low-pass filter and attenuate harmonic energy of the transmitter. R3545 is used to drain electrostatic charge that might otherwise build up on the antenna. The harmonic filter also prevents high-level RF signals above the receiver passband from reaching the receiver circuits, improving spurious response rejection.

3.6

Directional Coupler
The directional coupler is a microstrip printed circuit, which couples a small amount of the forward and reflected power delivered by Q3441. The coupled signals are rectified by D3451-2 and combined by R3540-1. The resulting DC voltage is proportional to RF output power. This RF powersensing signal later is combined with the current-sensing signal from U3503 and Q1503 as well as the temperature-sensing signal from RT3501 and fed to the RFIN port of the PCIC (U3501, pin 1). The PCIC controls the gain of stage U3401 as necessary to hold the sum of these signals constant, thus ensuring the forward power out of the radio to be held to a constant value. An abnormally high reflected power level, such as may be caused by a damaged antenna, also causes the DC voltage applied to the PCIC to increase, and this will cause a reduction in the gain of U3401, reducing transmitter output power to prevent damage to the final device due to an improper load.

3.7

Power Control
The transmitter uses the power control IC (PCIC, U3501) to control the power output of the radio. A portion of the forward and reflected RF power from the transmitter is sampled by the directional coupler, rectified and summed, to provide a DC voltage to the RFIN port of the PCIC (pin 1) which is proportional to the sampled RF power. The ASFIC contains a digital-to-analog converter (DAC) which provides a reference voltage of the control loop to the PCIC via R3505. The reference voltage level is programmable through the SPI line of the PCIC. This reference voltage is proportional to the desired power setting of the transmitter, and is factory programmed at several points across the frequency range of the transmitter to offset frequency response variations of the transmitter's power detector circuit. The PCIC provides a DC output voltage at pin 4 (INT) which is amplified by U3402-1, and applied to the power-adjust input pin of the first transmitter stage U3401. This adjusts the transmitter power output to the intended value. Variations in forward or reflected transmitter power cause the DC voltage at pin 1 to change, and the PCIC adjusts the control voltage above or below its nominal value to raise or lower output power. Capacitors C3502-4, in conjunction with resistors and integrators within the PCIC, control the transmitter power-rise (key-up) and power-decay (de-key) characteristic to minimize splatter into adjacent channels. U3502 is a temperature-sensing device, which monitors the circuit board temperature in the vicinity of the transmitter driver and final devices, and provides a DC voltage to the PCIC (TEMP, pin 29) proportional to temperature. If the DC voltage produced exceeds the set threshold in the PCIC, the transmitter output power is reduced so as to reduce the transmitter temperature.

4.0

VHF (136-174 MHz) 25-45W LDMOS Frequency Synthesis
The frequency synthesizer subsystem consists of the reference oscillator (Y3261 or Y3262), the Low Voltage Fractional-N synthesizer (LVFRAC-N, U3201), and the voltage-controlled oscillators and buffer amplifiers (U3301, Q3301-2 and associated circuits).

6881091C63-A

Chapter 11: 2-6

VHF (136-174 MHz) 25-45W LDMOS Frequency Synthesis

4.1

Reference Oscillator
The reference oscillator (Y3262) contains a temperature compensated crystal oscillator with a frequency of 16.8 MHz. An analog-to-digital (A/D) converter internal to U3201 (LVFRAC-N) and controlled by the P via serial interface (SRL) sets the voltage at the warp output of U3201 (pin 25) to set the frequency of the oscillator. The output of the oscillator (U3262 pin 3) is applied to pin 23 (XTAL1) of U3201 via R3263 and C3235. In applications where less frequency stability is required, the oscillator inside U3201 is used along with an external crystal Y3261, varactor diode D3261, C3261, C3262 and R3262. In this case, Y3262, R3263, C3235 and C3251 are not used. When Y3262 is used, Y3261, D3261, C3261, C3262 and R3262 are not used, and C3263 is increased to 0.1 uF.

4.2

Fractional-N Synthesizer
The LVFRAC-N synthesizer IC (U3201) consists of a pre-scaler, a programmable loop divider, control divider logic, a phase detector, a charge pump, an A/D converter for low frequency digital modulation, a balance attenuator to balance high frequency analog modulation and low frequency digital modulation, a 13 volt positive voltage multiplier, a serial interface for control, and finally a super filter for the regulated 5 volts.

DATA (U0101 PIN 100) CLOCK (U0101 PIN 1) CSX (U0101 PIN 2) MOD IN (U0221 PIN 40) +5V (U3211 PIN 1) +5V (U3211 PIN 1)

7 8 9 10 13, 30

DATA CLK CEX MODIN VCC, DC5V VDD, DC5V XTAL1 XTAL2 WARP PREIN VCP VMULT2 14 U3201 FRACTIONAL-N SYNTHESIZER

LOCK FREFOUT GND IOUT IADAPT MODOUT AUX4 AUX2 AUX3 SFOUT BIAS1 VMULT1 15 AUX1 BIAS2 48

4 19 6, 22, 33, 44

LOCK (U0101 PIN 56) FREF (U0221 PIN 34) STEERING LINE

43 45 41 3 1 2

5, 20, 34, 36 23 24 25 32 47

2-POLE LOOP FILTER

LO RF INJECTION

REFERENCE OSCILLATOR

LOW VOLTAGE

VOLTAGE 28 FILTERED 5V CONTROLLED OSCILLATOR 40 39 TRB

VOLTAGE MULTIPLIER

TX RF INJECTION (1ST STAGE OF PA)

PRESCALER IN

Figure 11-3 VHF Synthesizer Block Diagram

A voltage of 5V applied to the super filter input (U3201 pin 30) supplies an output voltage of 4.5 VDC (VSF) at pin 28. It supplies the VCO, VCO modulation bias circuit (via R3363) and the synthesizer charge pump resistor network (R3251, R3252). The synthesizer supply voltage is provided by the 5V regulator U3211.

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VHF (136-174 MHz) 25-45W LDMOS Frequency Synthesis

Chapter 11: 2-7

In order to generate a high voltage to supply the phase detector (charge pump) output stage at pin VCP (U3201-47), a voltage of 13 VDC is being generated by the positive voltage multiplier circuits (D3201, C3202, C3203). This voltage multiplier is basically a diode capacitor network driven by two signals (1.05MHz) 180 degrees out of phase signals (U3201-14 and -15). Output LOCK (U3201-4) provides information about the lock status of the synthesizer loop. A high level at this output indicates a stable loop. IC U3201 provides the 16.8 MHz reference frequency at pin 19. The serial interface (SRL) is connected to the P via the data line DATA (U3201-7), clock line CLK (U3201-8), and chip enable line CSX (U3201-9).

4.3

Voltage Controlled Oscillator (VCO)
The Voltage Controlled Oscillator (VCO) consists of the VCO/Buffer IC (VCOBIC, U3301), the TX and RX tank circuits, the external RX buffer stages, and the modulation circuits.
AUX3 (U3201 Pin2)

TRB IN Pin 20 Rx-SW Tx-SW Pin7 Pin13 TX/RX/BS Switching Network Pin 19

Prescaler Out Pin 12

U3201 Pin 32

(U3201 Pin28) Pin3 Steer Line Voltage (VCTRL) RX Tank RX VCO Circuit Q3304

Vcc-Superfilter

U3301 VCOBIC

Presc

LO RF INJECTION Matching Network Q3301 Low-Pass Filter

Collector/RF in Pin4

RX
Pin5 Pin6

RX Rx Active Bias

Pin8 (U3211 Pin1) VCC Buffers TX RF Injection Attenuator

Pin14

TX

TX Tank

TX VCO Circuit

Pin16 Pin15 Pin18 Vcc-Logic Vsens Circuit

Tx Active Bias

TX

Pin10

Pin2 Rx-I adjust

Pin1

Pins 9,11,17

Tx-I adjust

(U3211 Pin1)

Figure 11-4 VHF VCO Block Diagram

The VCOBIC together with the Fractional-N synthesizer (U3201) generates the required frequencies in both the transmit and receive modes. The TRB line (U3301, pin 19) determines which tank circuits and internal buffers are to be enabled. A high level on TRB enables the TX tank and TX output (pin 10), and a low enables the RX tank and RX output (pin 8). A sample of the signal from the enabled
6881091C63-A

Chapter 11: 2-8

VHF (136-174 MHz) 25-45W LDMOS Frequency Synthesis

RF output is routed from U3301, pin 12 (PRESC_OUT), via a low-pass filter, to U3201, pin 32 (PREIN). A steering line voltage (VCTRL) between 2.5 volts and 11 volts at varactor diode D3361 tune the full TX frequency range (TXINJ) from 136 MHz to 174 MHz, and varactor diode D3341 tunes the full RX frequency range (RXINJ) from 181 MHz to 219 MHz. The RX tank circuit uses a Hartley configuration for wider bandwidth. For the RX tank circuit, an external transistor Q3304 is used for better side-band noise. The external RX buffers (Q3301 and Q3302) are enabled by a high at U3301, pin 7 (RX_SWITCH) via transistor switch Q3303. In the TX mode, the modulation signal (VCOMOD) from the LVFRAC-N synthesizer IC (U3201 pin 41) is applied to varactor diode D3362, which modulates the TX VCO frequency via capacitor C3362. Varactor D3362 is biased for linearity from the VSF.

4.4

Synthesizer Operation
The complete synthesizer subsystem consists of the low voltage FRAC-N (LVFRACN), reference oscillator (a crystal oscillator with temperature compensation), charge pump circuit, loop filter circuit and a DC supply. The output signal PRESC from the VCOBIC (U3301 pin 12) is fed to U3201 pin 32 (PREIN) via a low-pass filter (C3318, L3318 and C3226) which attenuates harmonics and provides the correct level to close the synthesizer loop. The pre-scaler in the synthesizer (U3201) is a dual modulus type with selectable divider ratios. The divider ratio of the pre-scaler is controlled by the loop divider, which in turn receives its inputs via the SRL. The output of the pre-scaler is applied to the loop divider. The output of the loop divider is connected to the phase detector, which compares the loop divider's output signal with the reference signal. The reference signal is generated by dividing down the signal of reference oscillator Y3261 or Y3262. The output signal of the phase detector is a pulsed DC signal which is routed to the charge pump. The charge pump outputs a current at U3201 pin 43 (IOUT). The loop filter (which consists of R3221-R3223 and C3221-C3224) transforms this current into a voltage that is applied to the varactor diodes (D3361 for transmit, D3341 for receive) to alter the output frequency of the appropriate VCO. The current can be set to a value fixed within the LVFRAC-N IC, or to a value determined by the currents flowing into BIAS 1 (U3201-40) or BIAS 2 (U3201-39). The currents are set by the value of R3251 and R3252 respectively. The selection of the three different bias sources is done by software programming. To reduce synthesizer lock time when new frequency data has been loaded into the synthesizer, the magnitude of the loop current is increased by enabling the IADAPT pin (U3201-45) for a certain software programmable time (adapt mode). The adapt mode timer is started by a low to high transition of the CSX line. When the synthesizer is within the lock range, the current is determined only by the resistors connected to BIAS 1 and BIAS 2, or by the internal current source. A settled synthesizer loop is indicated by a high level signal at U3201-4 (LOCK). The LOCK signal is routed to one of the P's ADC inputs (U0101-56). From the measured voltage, the P determines whether LOCK is active. To modulate the PLL, the two spot modulation method is utilized. Via U3201, pin 10 (MODIN), the audio signal is applied to both the A/D converter (low frequency path) as well as the balance attenuator (high frequency path). The A/D converter changes the low frequency analog modulating signal into a digital code that is applied to the loop divider, thereby causing the carrier to deviate. The balance attenuator is used to adjust the VCO's deviation sensitivity to high frequency modulating signals. The output of the balance attenuator is present at the MODOUT port (U320141) and connected to the VCO modulation diode D3362 via R3364.

6881091C63-A

Chapter 11: 3-1

Section 3 TROUBLESHOOTING CHARTS
1.0 Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)
START

Bad SINAD Bad 20dB Quieting No Recovered Audio

Audio at pin 8 of U3101?

Yes

Check Controller (in the case of no audio) OR ELSE go to "B"

No
Spray or inject 44.85MHz into XTAL Filter FL3101

A

B

Yes
Audio heard?

Check Q3102 bias for faults

No
Check 2nd LO (44.395MHz) at C3135

No

Biasing OK?

Replace Q3102

Yes

B

Yes

LO present?

No
Check voltages on U3101 Check circuitry around U3101. Replace U3101 if defect

Go to B

No

Voltages OK?

Yes

Check circuitry around Y3101. Replace Y3101 if defect

6881091C63-A

Chapter 11: 3-2

Troubleshooting Flow Chart for Receiver

1.1

Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)
B

Inject RF into J3401

IF Signal at C3035? No Yes RF Signal at T3001? No Yes RF Signal at C3012? No Yes RF Signal at C3008? No or weak RF Yes RF Signal at C3474? No Check Harmonic Filter J3401 and Antenna Switch D3471,D3472,L3472

Yes

Trace IF signal from C3035 to Q3101. Check for bad XTAL filter

IF signal at Q3102 collector?

Yes

No 1st LO level OK? Locked? Yes No Check FGU Check T3001, T3002, D3031, R3030-R3034, L3032, C3034 and C3035

Before replacing U3101, check U3101 voltages

Check filter between C3012 & T3001

Check for 5VDC

Yes

A

No Check RF amp (Q3001) Stage

Is 9.3V present? No

Yes

A

Check filter between C3474 & C3008. Check tuning voltage at R3019

Check Supply Voltage circuitry. Check Q0681, U3211 and U0641

Is tuning voltage OK? No Check U3501

Yes

Check varactor filter

6881091C63-A

Troubleshooting Flow Chart for 45W Transmitter

Chapter 11: 3-3

2.0

Troubleshooting Flow Chart for 45W Transmitter (Sheet 1 of 3)
START

No power or low power when keyed

Check if pressure pad closes S3440

Check components between Q3441 and RF output, antenna switch D3471, D3472, Q3472, VR3471, Q3471

>4A

Measure supply current increase when keyed

>500mA & <4A

<500mA
Is control voltage at TP3402 >1V when keyed?

Check PA stages

YES

NO

Check 9.3 V Regulator U0641

NO

Is PCIC U3501 Pin 14 9.3V DC? YES Short TP3403 to Ground

Replace PCIC U3501

NO

Is PCIC U3501 Pin 16 >4V DC? YES Check PA stages YES

If U3201 Pin 2 is high, replace PCIC U3501; otherwise check controller and FGU

NO

Is voltage at TP3402 raised? YES

Is TP3404 9.1V DC? YES

Check power-sensing circuitry (D3451 & D3452) Check power setting, tuning & components between PCIC Pin 5 and ASFIC (U0221) Pin 4 before replacing ASFIC NO Is PCIC U3501 Pin 5 > 1V DC? YES

Replace PCIC U3501

YES

Is TP3403 >0.5V DC?

NO

Check power-sensing circuitry (D3451 & D3452)

6881091C63-A

Chapter 11: 3-4

Troubleshooting Flow Chart for 45W Transmitter

2.1

Troubleshooting Flow Chart for 45W Transmitter (Sheet 2 of 3)

Check PA stages

No power or low power when keyed

DC voltage at U3501 pin 23 =0? YES

NO

If U3201 pin 2 is high, replace PCIC

Check S3440, R3442 and R3443

NO

DC voltage at U3402-1 pin 3 = 8.8V? YES

<2V

DC voltage >6 at U3402-1 pin 1? 2-6

Check resistive network at pins 2 & 3 of U3402-1 before replacing U3401

Measure DC voltage at pin 2 & 3 of U3401

Check Q3442 and resistive network at U3402-1 pin 3 before replacing U3401

Pin 2 voltage 0.62 * voltage at pin 1? YES

NO

Replace U3401

Pin 3 voltage 0.51 * voltage at pin 1? YES

NO

Replace U3401

DC voltage at TP3408?

ELSE

Retune MOSBIAS_1

2-6V Check final PA stage

6881091C63-A

Troubleshooting Flow Chart for 45W Transmitter

Chapter 11: 3-5

2.2

Troubleshooting Flow Chart for 45W Transmitter (Sheet 3 of 3)

Check final PA stage

0V

Bias 2 DC voltage at TP3406? 1-4V

Supply Voltage Replace Q3441

Check components between ASFIC and Q3441 before replacing Q3441

YES

ASFIC U0221 pin 6 1-4V DC? NO

RF voltage NO at TP3401 >100mV? YES

Check FGU (U3301)

Check bias tuning before replacing ASFIC U0221

RF voltage NO U3401 Pin 6 >3V? YES

Check components between TP3401 & C3417

RF voltage Q3421 Gate >1V? YES

NO

Check components between C3417 & Q3421

RF voltage Q3441 Gate >4V? YES

NO

Check components between Q3421 & Q3441

Check components between Q3441 & antenna connector

6881091C63-A

Chapter 11: 3-6

Troubleshooting Flow Chart for Synthesizer

3.0

Troubleshooting Flow Chart for Synthesizer

Start

5V at U3201 pins 5, 20, 34 & 36

No

Check 5V Regulator U3211, R3211

Yes Correct Problem No Visual check of the Board OK? Yes Is 16.8MHz signal at U3201 pin 23? No Yes Replace U3201

Yes

5V at pin 6 of D3201

No

Is U3201 Pin 47 = 13VDC?

Yes No +5V at U3201 Pins 13 & 30?

Is 16.8MHz Signal at U3201 Pin 19? Yes

No

No

Yes Check 5V Regulator U3211 No Check Y3261, Y3263 and associated parts

Check R3201

Is U3301 Pin 19 <40 mVDC in RX & >4.5 VDC in TX? (at VCO section)

No

Are signals at Pins 14 & 15 of U3201? Yes

Yes

Are Waveforms at Pins 14 & 15 triangular? Is U3201 pin 2 >4.5 VDC in Tx & <40 mVDC in Rx Yes Yes

No

Check D3201, C3202, C3203, C3205 & C3206

Check C3319

No No Is there a short between Pin 47 and Pins 14 & 15 of U3201? Yes Is RF level at U3201 Pin 32 -12 < x <-25 dBm? No If R3227, C3226 & C3227 are OK, then see VCO troubleshooting chart Remove Shorts

No

Replace U3201

Do Pins 7,8 & 9 of U3201 toggle when channel is changed?

Check programming lines between U0101 and U3201 Pins 7,8 & 9

Yes

No

Is information from P U0101 correct? Yes

Yes

Check P U0101 Troubleshooting Chart

Are R3221, R3222, R3223, C3221, C3222, & C3224 OK?

Replace U3201 No Replace or resolder necessary components

Yes Replace U3201

6881091C63-A

Troubleshooting Flow Chart for VCO

Chapter 11: 3-7

4.0

Troubleshooting Flow Chart for VCO
Low or no RF Signal at TP3001 Low or no RF Signal at input to PA

RX VCO

TX VCO

Visual check of board OK?

NO

Correct Problem

NO

Visual check of board OK? YES

YES
5V DC at U3301 Pin 14 & 18 OK? NO Make sure U3211 is working correctly and runner between U3211 Pin 1 and U3301 Pin 14 & 18 is OK NO

5V DC at U3301 Pin 14 & 18 OK?

YES
4.5V DC at U3301 Pin 3 OK? YES 35mV DC at U3301 Pin 19 OK? YES NO Check runner between U3201 Pin 2 and U3301 Pin 19 NO NO Make sure Synthesizer is working correctly and runner between U3201 Pin 28 and U4301 Pin 3 is OK NO

YES 4.5V DC at U3301 Pin 3 OK? YES 4.8V DC at U3301 Pin 19 OK? YES

Are Q3304 Base at 2.4V Collector at 4.5V Emitter at 1.7V YES

NO

If all parts associated with the pins are OK, replace Q3301

Are U3301 Pins 13 at 4.4V 15 at 1.1V 10 at 4.5V 16 at 1.9V YES

NO

If all parts associated with the pins are OK, replace U3301

Are Q3301 Base at 0.7V Collector at 4.5V Emitter at 110mV YES

NO

If all parts associated with the pins are OK, replace Q3301

Is RF available at TP3401
YES

NO

If R3402 and C3315 are OK, replace U3301

Is RF available at base of Q3301

NO

If all parts from U3301 Pin 8 to Base of Q3301 are OK, replace U3301

If all parts from TP3401 of U3401 Pin 16 are OK, replace U3401

YES

Check parts between T3001 and Q3301

Power OK but no modulation

Audio =180mVrms at "-" side of D3362

NO Replace R3364

YES
NO Replace R3363

2.5VDC at D3362

YES

If C3362 and R3363 are OK, then replace D3362

6881091C63-A

Chapter 11: 3-8

Troubleshooting Flow Chart for VCO

Notes

6881091C63-A

Chapter 11: 4-1

Section 4 VHF (136-174 MHZ) 25-45W LDMOS PCBS, SCHEMATICS, AND PARTS LISTS
1.0
1.1

Allocation of Schematics and Circuit Boards
Controller Circuits
The VHF circuits are contained on the printed circuit board (PCB) which also contains the controller circuits. This chapter shows the schematics for the VHF circuits only. Refer to the controller section for details of the related controller circuits. The PCB component layouts and the parts lists in this chapter show both the controller and VHF circuit components. The VHF schematics and the related PCB and parts lists are shown in the tables below.

Table 11-1 VHF 25-45W PCB 8486140B15 Diagrams and Parts Lists
PCB 8486140B15: Main Board Top Side Main Board Bottom Side SCHEMATICS Power Amplifier 25 - 45W FRACN Synthesizer Voltage Controlled Oscillator Receiver Front-End IF Parts List Controller version is T12 Page: 11: 4-3 11: 4-4 11: 4-5 11: 4-6 11: 4-7 11: 4-8 11: 4-9 11: 4-10

6881091C63-A

Chapter 11: 4-2

Allocation of Schematics and Circuit Boards

Notes

6881091C63-A

VHF (136-174 MHz) 25-45W LDMOS PCB 8486140B15, Schematics, and Parts Lists

Chapter 11: 4-3

2.0

VHF (136-174 MHz) 25-45W LDMOS PCB 8486140B15, Schematics, and Parts Lists
C0251 1 16 C0211 1 R0257 C0256 14 R0256 R0211 R0251 R0212 R0253 8 9 C0252 C0262 C0421 C0108 16 1 R0103 C0253 R0262 R0261 Q0110 R0102 C0228 26 1 100 R0115 R0101 R0108 R0226 R0228 C0224 C0226 R0229 R0110 R0227 7 8 C0261 R0269 C0441 C0442 C0447 C0470 C0471 C0472 C0473 C0474 C0476 C0443 C0445 C0446 C0448 R0442 C0449 C0478 C0477 C0490

J0451
L3201 C3210

C3240 D3221 C3145 R3222 R3223

CHECK ONE

Q3221

C3148

C3212 C3242 U3211 R3211 C3211 C3245

C3255

R0268

R3227 C3253 C3233

C3243 C3244 C3246 C3247

C3134 3 2 8 7 C3140 C3141 11 10 R3130 C3133

C3215

C3214

R3251

C3252

C3254

R3252

C3234

C3232

R0224 C0225 R0220 R0223 C0221 C0222 R0221 R0254

U3111
4 C3142 1 R3106 14 1 20 1 R3117

C3136 R3123

Illustrator

R0222

R3124

PROGRAM

FL3112

DWG. NO.

C3135

CORRECTED AS MARKED

U3101

DISK

ISS.

REVISION

C3223

C3224

14

1

R3142 C3139

C3143

R3135

C3132

O.K. AS IS

2

ZWG0131057

18

U3115

R3225

R3144

RLSE. LETTERING SIZE: REQUIRES:

1

C3227

U0211

R3145

U0251

R0252

C0212

C3213

L3232

C3231

C3226

C3229 R3202

FL3114

Y3102

O.K. AS MARKED (

RLSE.

R3242 R3224

C3222 R3221

C3221

(

)

)

8

7

C3131

R0255 C3137 R3132 SH3301 C0243 D3361 C0241 C3365 C3103 R3101 L3364 R3361 C3361 C3363 L3361 R3362 D0201 C0496 L3341 R0681 R0682 1 R3342 C3341 Q3304 R3341 C0681 C3345 Q0681 L3346 C3344 D3341 L3344 C3337 4 R3335 C3336 3 2 1 L3032 R3028 C3034 C3014 R3025 C3018 C3013 R3027 Q3021 C3021 C3028 R3024 C3027 R3026 R3013 D3003 R3004 C3009 6 L3333 R3031 D3004 R3016 C3324 C3362 D3362 C3017 C3020 C3032 D3031 C3016 L3031 R3009 R3002 C3010 C3011 C3012 L3002 Q3001 R3014 R3015 C3015 R3364 R3363 6 L3034 4 L3100 C3101 3 3 C3100 4 2 1 C3114

C3124

DATE

R3111

R0104

C0106

C0495

L3362

3 4

C0232 C0104 C0237 C0233

C3364 C3357

C3102

U0221

R0242 C0246 L3363

2

T3002
1 2

5

6

FL3101
5 6 L3101

C0132

DATE

C0107

C0234

C3019

51

76

C0223 R0225 C0231

13 C0235

C0244

C3006

17

32 R0106 R0105 R0170 C0101 R0131 R0132 1 4 C0131 R0114 R0651 C0102

C0245

C0652

Y0131

U0651
3 D0651 C0651

2

D3001

T3001

2

3

L3343 C3346

C0655

U0271
R0652

C0654

L0481 R3336 C3342

R3003 C3008

C3002

C0494

C0488

C0483

9

1 5

C0486

C0487

L0482

C0482

C0493

C3347

C3451 1 C3509 R3471 R3402 Q3471

U0641
C3506 R3506 R0182 R0186 6 R3505

Q3472
R3405 L3401

L3471

R3473

C3560

L3510

C3561

L3511
D3472

R3401 R3508 C3401 R3403 R3400 C3400 C3508 R3507 R3509

U3502 R0185 Q0185 R0181 R0539 R0538 VR0505 VR0503 R0510 VR0510 R0535 C3412 Q0181 C3507 Q0177

16

9

C3410

C3404

C3403

D3471

U3401
L3403 1 8 C3411

L3514

C3477

C3476

C0542
VR0501 C3418 L3411 C3417

C3568

L3515
C3567

C0509

C0512

C0508

C0506

C0505

C0504

C0503

C0518

C0515

C0516

C0513

C0514

C0502

C0510

C0517

C0501

C0511

C3543 R3424 R3425 R3426 R3427 C3422

R0533

C3423 C3433 7

L3443 R3541 D3452 5 C3555 C3526 R3525 R3526 C3530 C3531 R3544

C0612

L3412 L3413 L3414 C3424 L3422 C3431 C3523 3

5 C0601 C3426

R3461
L3500

C3425

6

R0612

U0611
1

C3419

R3414

Q3441
R3563 D3451 2 L3506 R3540

C3550 L3505

C3420 R3415

R3450
C3552

R0611 Q3442 R3416

M3421
C3432

R3527 C3525 4 6 R3562 R3460

R0509

R0508

Q3422

C3551

R3545

C0484 10

Q3411 8 R3515 C3428

C0603
C3514

R3514

R3431

R3432

C3512

C3513 1

C3528

C3527

J0501
4

U3503
11 20 5 8 R3513 C3511 R3560

R3404 R3406

C3529

C3570

C3435

D3473

C3434

2

3

ZWG0131057-O

EDITOR

R3001

ILLUSTRATOR

C3007

C3005

C3004

DATE

C0236

25

R0241

PCB 8486140B15 Top Side

FL3102

CHECKER

C0227

ENGINEER

U0101

48 1

37

C0242

RK 02. August.2002

U0121

R0116

WARIS Mobile 25-45 W, VHF

C3115

L3124

DATE

O

J0601 J3401

ZWG0131057-O

VHF (136-174 MHz) 25-45W LDMOS PCB 8486140B15 Top Side
6881091C63-A

Chapter 11: 4-4

VHF (136-174 MHz) 25-45W LDMOS PCB 8486140B15, Schematics, and Parts Lists

R3241

C3262

R3262

C0205

C3261

R0412

R0441

R3146

C3147

R3152 C3151 Q3152

TP3201

C3263

C3202

C3146

C3152

D3261

TP3202

C3241 R3203 R3204

C3203

R3201

J0401
C0492 12 C0497 C0491

R0208

R0265

C0267 R0267 R0266 C0254 R0206 C0266 C0265 R0203 TP0222 VR0541 R0202 U0653 C0202 8 5

C0255

FL3113

4 R3147 C3144 R3154 R3153 Q3141 R3141 R3134 Q3151 4 R3133 R3151 1

3

R3261 R3265

FL3115

R3228 C3228

2

C3208

2

1

3

4

25

13

C3207

D3201 R3206

R0468

U0652
1 4

R0593

C0123

C0122

C0427

C0428

C0429

C0430

C0431

C3206

C0426

C0201 R0205 TP0221 C0203 C0204

3 C3251

4

L3231

FL3111
2 1

R3226 R3263 C3235

C3225 R0407 R0409

R0207 TP0102

R0555

Y3101
3 4

R3113 C3123 C3122 R3118 R3116

C3318 L3318 C3356 R3356 C0304 C0305 C3355 D0301 28 15 TP0497 R0344 R0345 R3323 C3319 R3355 L3351 R0324 C0343 4

R3315

C3313

R3319

C0341

C0344

L3111

C3121 L3112 C3111

R3036 C3110

DATE

R3313 C3113 R3035 C3031 C3306 R3032 TP3001 C3024 R3033 L3301 C3301 C3312

Q3302 R3306

R3316 C3304 R3305

R0111 R0343 TP0101 R0117

R0112

C3316 20 C3314 C3348 1 10 U3301 11

C3334 C3333 C0351

R3312 R3307

C0302

WARIS Mobile 25-45 W, VHF

21 R0113

8

ENGINEER

8

1

C0301

C3035 R3010 C3000 Q3002 R3011 R3018 D3011 R3034 R3030

R3331 C3332 L3332 C3331 R3351 C3351 L3331 C3315

R3321 Q3303 R3301 L3302

8 5 U0351 1 4

4 3

C0141 16

9

C0303 1 C0352 R0331 R0481 R0333 U0331 C0558 R0332 R0335 C0331 C0641 R0641 R0591 C0592 C0593 14 R0643 R0642 C0645 R0592 40 C0591 C0559 C0560

DATE

R3023

R3019

C3023

C3302 R3303 L3345

1 C0575 C0576

R3012

R3304 C3036 L3025 C3025 C3303 R3302 R3308 R3354 R3353 R3352 C3352

R0556

R3000 R3006 C3001 C3029 C3026 D3000 C3030

L3317 C3317

C0353

Q0271

C0644
E0271 E0272 R0273

C0554 D0151 R0274 C0272 C0274 R0276 R0151 R0152 TP0151

R0482

Q0641 Q0661

C0662 TP3405 R3475 TP3404 R3561 RT3501 R3556 R3455 R3454 1 9 TP3403 VR3471 C3475 C3453 R3501 C3421 TP3401 C3501 R3413 R3504 Q0663 R3502 25 TP0661 17

C0275
R0671 R0672 Q0662 C0671

C0663 R0662

C0276

C0277

C0271 C0273

R0275 VR0151

R3474

C3471

R0661

C0622

U3501
D0661

VR0671 R0178 R0175 VR0621 R0176 Q0171 R0177

C3439

C3562

C3564

C3438

C3563

C3569 C3466

C3505

C3502

D0660

TP3402 R3446 D3402

C3504

C0661

D0621

L3421

D0179 Q0173 R0172 R0171 R0530 R0179 R0529 R0511 Q0183 R0173

R0621 C0621

C3510

L3512
C3566

C3503

R3555

R3518

C3436

R0542 R0174 C0541 R0512 R0525 TP0530 VR0504 R0541

R3411 C3414 C3413

C3416 C3437 C3544 C3565 C3546 C3545 R3444 C3415 R3412

R0531 VR0509

L3436

R3442 R3443 R3441 R3445 R3421 4 R3428

L3437

R3440

C3440

1

U3402
5 8 C0499

R0184

R0537

L3513

R0183

VR0537

C3402

Q0151

C0151

Q3421
1 3 2

R3423

C0611

R3422 R3418

C3427 R3417

VR0601
R3429 TP3408

S3440 E0631 L3402
R3510 T3409 R3512 C3405 C3406

TP3406

C3515 R3517

Q1503 R3511

ZWG0131058-O

EDITOR

C3022

R3021

C3003

Q3301

ILLUSTRATOR

LETTERING SIZE: REQUIRES:

C0354

DATE

J0551

PCB 8486140B15 Bot Side

C3311 R3311

U0141

CHECKER

U0301

R0121

TP0492

TP0103

RK 02. August.2002

DATE

C3305

R3318

R3343

R0346

C3033

L3311

R3107

U0342
5

U0111
8

C0111

O

R3114

C3112

ISS.

R3112

R3108

R3314

R3317

4

1

C0103

Illustrator

R3115

C3116

R0347

18

1

U0122

PROGRAM

Q3102

Q3101

C3104

DWG. NO.

D3101

5

TP0104

CORRECTED AS MARKED

R3105 R3104 R3102

U0341

R0342 R0401

DISK

C3335

C0324 C0325

R0323

R0341

C0112

D0101

1

8

C0342

22

1

7

J0552

REVISION

1

2

F0401

R0408

O.K. AS IS

R0107

ZWG0131058

C0105

C0121

3

6

37

RLSE.

1

1

C0485

R0201

O.K. AS MARKED (

Y3263

U3201

CHECK ONE ( )

Y3261

C3209 C3205 R0467 C0422 C0423

R0543

RLSE.

R0204

)

ZWG0131058-O

VHF (136-174 MHz) 25-45W LDMOS PCB 8486140B15 Bottom Side
6881091C63-A

VHF (136-174 MHz) 25-45W LDMOS PCB 8486140B15, Schematics, and Parts Lists

Chapter 11: 4-5

PASUPVLTG_VHF_PA_1 G PASUPVLTG

L3402 57R01 FSWB

R3510 FSWB2 0 A+ R3511 100 R3515 100K A+ A+ A+ L3436 57R01 C3544 0.1uF C3545 .01uF C3546 1uF FSWB2 R3518 FSWB .01 T3409 LM6142BIM R3513 100K NU R3514 100K NU C3513 C3512 1000pF 1000pF NU C3514 .01uF C3515 2200pF R3517 3.6K R3525 2.7 C3403 R3526 L3403 68nH 33pF L3401 4.22nH 33pF C3404 L3422 13.85nH C3424 C3423 1uF C3422 330pF L3411 68nH G C3411 .022uF C3412 330pF S1 S2 S3 S4 2.7 U_DRIVER R3527 2.7 RT3501 50K C3431 C3523 1000pF R3556 220K TP3403 R3561 820K C3569 2200pF R3431 51 C3433 56pF R3432 51 R3454 39K R3475 10K R3474 R3540 1K C3451 C3453 470pF C3551 16pF A+ R3450 120 C3552 4.7pF NU 9V3FLT C3550 1000pF C3438 470pF C3439 470pF R3562 1MEG width = 2.032 C3570 91pF C3543 43pF L3443 18nH D L3500 18nH R3461 62 D3471 C3561 C3562 150pF NU C3563 130pF L3513 51nH L3514 51nH C3566 43pF L3515 48nH C3567 36pF C3568 9.1pF L3437 17nH

U3503-1
2 8 1

Q1503

L3421 57R01 9V3_VHF_PA_1 9V3 G 9V3FLT

R3512 100K

3 4

C3421 .033uF

C3511 1000pF

V_SENSE

C3405 470pF

C3406 470pF

C3436 10uF

C3437 .033uF

Q3441
GND1 GND2 C3525 120pF NU C3526 120pF NU C3527 62pF C3528 62pF C3529 91pF C3530 6.2pF

470pF L3510 1.2uH C3560 16pF NU

U_PREDRIVER

C3531 6.2pF

C3402 .022uF

R3563 1MEG

R3544 0 NU

R C F

Reverse: 0.254 x 23.91 Center: 1.905 x 29.03 Forward: 0.254 x 22.674

L3512 L3511 48nH 51nH C3564 13pF C3565 39pF

R3545 47K

Spacing: 0.254 L3505 150nH NU

C3400

R3400 470 C3419 330pF 6 C3417 R3414 120

L3506 120nH NU D3451

R3460 0

C3555 1000pF D3452

J3401

TP3401 C3401 330pF

330pF

470pF

110pF

Q3421
C3432 56pF NU 1.542x4

TXINJ_VHF_PA_1 TXINJ G

R3402 15

16 RFIN 1 VCNTRL 14 VD1 11 R3403 300 R3405 100
G2

RFOUT1

7 RFOUT2 2
VG1 VG2

L3412 12nH

L3414 7.66nH L3413 11.03nH NU C3420

0.8x25 M3421 HEATSINK 330pF TP3408 R3415 36 R3416 36 1 POS

3

47pF C3418 33pF C3413 .022uF NU C3414 330pF R3411 6.8K NU

R3541 0

D3402
R3555 V_SENSE 10K

R3401 300

4 GND1 5 GND2 12 GND3 13

GND4

8 NC1 9 NC2 10 NC3 15
NC4

U3401
5185130C65

EP

17

C3410 .022uF C3415 .022uF C3416 330pF R3412 5.6K

R3424 R3425 A+ R3426

2.7 2.7

C3425 .022uF

C3426 330pF

C3434 .01uF

C3435 330pF

R3455 100K

L3471 1.2uH

D3472

RXIN_VHF_PA_1 G RXIN

VR3471
C3471 .022uF NC 2

3 R3473 51 1

51

1000pF C3476 150pF C3477 150pF C3466 1000pF TP3404 K9V1_VHF_PA_1 C3509 G RESET_VHF_PA_1 G RESET FECNTL_1 FECNTL_2 FECNTL_1_VHF_PA_1 G FECNTL_2_VHF_PA_1 G 17 K9V1 C3475 18pF

U_DRIVER 2.7 2.7 R3428 2.4K

D3473
NU

Q3471
R3471 470

Q3472

A+

Q3411
PA_SWB INT_SWB_VHF_PA_1 INT_SWB G R3560 0 TP3406 MOSBIAS_2_VHF_PA_1 MOSBIAS_2 G 47K R3404 C3428 2200pF

R3422 2.2K R3421 39K

U3402-2
LM6142BIM

R3427

5

4 7

R3429 220 R3417 NU PA_SWB R3418 22K CLK G 1K MOSBIAS_1

470pF NU 24 23 22 NC 21 20 19 NC 18

6 R3423 39K

8

VAR3 RX NA RS VAR1 VLIM VAR2 V5EXT

C3505 1uF 16 15 14 13 12 11 10 9

C3427

CLK_VHF_PA_1 DATA_VHF_PA_1 DATA G CSX G CSX_VHF_PA_1

R3504 10K 9V3FLT

2200pF

Q3422
R3406 100K

U3502
1 LM50 TP3405 POS R3508 100K R3507 9V3FLT 6.8K GND C3507 100pF R3502 39K 20K R3509 1K C3502 2200pF

SWITCH A+ R3444 U_PREDRIVER 9V3FLT 2.7 R3442 2.2K R3440 0 NU C3501 2200pF

C3508 470pF

VOUT

2

R3501

NC

S3440

3 TP3402

1 2 3 4 5 6 7 8

RFIN T1 CI INT CJ VL CL GND1

9V3FLT

25 26 27 28 29 30 31 32

GND2 CLK BPOS DATA CEX TEMP RSET ANO

U3501
H99S-4

V45 VG V10 CQX CQ Q QX F168

NC 9V3FLT NC NC NC NC NC

C3506 2200pF

C3504 .01uF PA_PWR_SET_VHF_PA_1 G 300K PA_PWR_SET

U3503-2
6 5 4 4 1 8 PA_SWB 2 3 8 LM6142BIM 7

R3505

U3402-1
LM6142BIM

R3445 2.4K

R3441 39K

R3446

R3413 3.3K C3510 470pF C3503 470pF R3506 10K NU

CNTLVLTG_VHF_PA_1 G CNTLVLTG

Q3442

0

R3443 39K C3440

TEMPSENSE_VHF_PA_1 G TEMPSENSE

1000pF

ZWG0131063-O

VHF (136-174 MHz) 25-45W LDMOS Power Amplifier
6881091C63-A

Chapter 11: 4-6

VHF (136-174 MHz) 25-45W LDMOS PCB 8486140B15, Schematics, and Parts Lists

Karl-Ludwig Fa
R3211 0 C3214 2.2uF VDDA_VHF_FN_1 G VDDA

U3211
ADP3300 5V_VHF_FN_1 (SOURCE) 5V G 5V_VHF_FN_2 6 C3212 ERR 4 OUT 2 NR 1 GND SD IN 3 5

VDDA

4.97VDC 13.30VDC 6.83VDC 11.28VDC
C3202 .01uF 3 2 1 4 A3 5 A2 6 A1 L3201 390nH 5V

IN_5V_RF_REG_VHF_FN_1 G IN_5V_RF_REG

.022uF C3213 2.2uF C3211 0.1uF C3215 2.2uF

Hans-Peter Gaer

17. May 1999

K3 K2 K1

R3201 47 VCOBIAS_1_VHF_FN_1 G R3224 47K R3225 R3206 150K NU R3226 47K NU 47K D3221 C3229 VCOBIAS_1

C3203

17. May 1999

D3201
.01uF

C3210 2.2uF C3225 0.1uF

.047uF

Q3221
17. May 1999 02. June 1999
VCOBIAS_2_VHF_FN_1 G C3228 0.1uF VCOBIAS_2

C3208 R3202 10MEG NU C3205 .01uF C3206 10uF C3207 VCTRL_VHF_FN_1 VCTRL G 390 TP3201 0.1uF C3221 R3222 680 C3222 0.1uF R3203 47

0.1uF C3209 0.1uF

28. July 1999

2.5-11VDC

R3221

22pF NU PD_GND 44 PRE_GND 33 AGND 22 DGND 6 R3204 47 R3228 47K NU C3246 220pF 25 NC 16 28 46 4 45 43 WARP INDMULT SFOUT ADAPTSW LOCK IADAPT IOUT

1.1-4.1VDC
R3265 TP3202 0 NC3 31 NC NC2 29 NC NC1 17 NC 42 NC CCOMP 18 NC REFSEL

29. July 1999

-2 to +7dBm
R3227 100K

LOCK

G

LOCK_VHF_FN_1 5VDC (LOCKED) 0VDC (UNLOCKED) R3223 100 C3223 1uF NU C3224 1uF

C3226

NC 38 TEST2 NC 37 TEST1 3 2 1 48 AUX4 AUX3 AUX2 AUX1

U3201

3.63VDC PREIN 32 SFBASE 27 NC SFCAP 26
BIAS2 39 BIAS1 40 VBPASS 21 NC PVREF 35 NC 30 SFIN 7 DATA 10 MODIN CEX 9 8 CLK

C3227

8.2pF

PRESC_VHF_FN_1 G PRESC

100pF R3252 330K

C3255

2.2uF

VSF_VHF_FN_1 G VSF C3252 1000pF C3254 .01uF DATA_VHF_FN_1 G DATA

16. Dec. 1999 08. Feb. 2000 29. Feb. 2000

BWSELECT_VHF_FN_1 BWSELECT VCOMOD G VCOMOD_VHF_FN_1 G

4.95VDC (R) 0VDC (T)

R3251 180K

63A27

C3253 4.7uF

4.52VDC (R) 2.62VDC (T)

C3247 10pF R3242 R3241

NC 11 VMULT4 NC 12 VMULT3 14 VMULT2 15 VMULT1 41 MODOUT 19 FREFOUT VCP VRO DVDD AVDD PRE_VDD PD_VDD

5VDC 2.5VDC 5VDC 0VDC
R3261 47K (*) C3244 220pF C3242 220pF C3245 220pF C3243 220pF VDDA

MODIN_VHF_FN_1 G CSX_VHF_FN_1 G CLK_VHF_FN_1 G CLK CSX MODIN

16. Nov. 2000

16_8MHz_VHF_FN_1 16_8MHz G TRB_VHF_FN_1 TRB G

+1dBm
0

0VDC (R) 4.91VDC (T)

100 C3241 56pF NU

C3240 22pF NU

L3232 2.2uH NU

2.90VDC 3.42VDC

24 XTAL2 23 XTAL1

47 13 36 20 34 5

L3231 (*)
Ref.No. C3235 C3251 C3261 C3262 C3263 D3261 R3261 R3262 R3263 Y3261 Y3262 Ref.Osz. 2113741F49 2113743E20 NOTPLACED NOTPLACED 2113743E20 NOTPLACED 0662057A89 NOTPLACED 0662057A65 NOTPLACED 4886182B01 RefOsc 4.7K 47K 100nF 10nF 100nF Temp.Comp. org. NOTPLACED NOTPLACED 2113740L37 62pF 2% 2113740F59 2113740F07 4802245J22 0662057B02 NOTPLACED NOTPLACED 4880114R04 NOTPLACED Xtal 150K 220pF 1.5pF Temp.Comp. new NOTPLACED NOTPLACED 2113740F41 2113740F63 NOTPLACED 4862824C03 0662057A89 NOTPLACED NOTPLACED 4805875Z04 NOTPLACED Xtal 47K 39pF 330pF

Y3261
75Z04 16.8MHz NU 6 3 D3261 NU C3263 0.1uF (*) C3231 .01uF C3232 .01uF C3233 2.2uF

2.2uH

IN

OUT

C3261 39pF (*) NU

C3234 0.1uF

C3235 .01uF (*)

GND 1

GND1 4

Temp.Comp.Xtal

Y3263
R3262 6.2K NU C3262 330pF NU (*) R3263 4.7K (*)

1 5V

VCNTL 16.8MHz TTS05V Ref.Osz. (*) 4 2 GND VCC C3251 0.1uF (*)

OUT 3

ZWG0131061-O

VHF (136-174 MHz) 25-45W LDMOS FRACN Synthesizer
6881091C63-A

ZWG0131061-O

VHF (136-174 MHz) 25-45W LDMOS PCB 8486140B15, Schematics, and Parts Lists

Chapter 11: 4-7

Q3303
9.14VDC (R) 0VDC (T)
UMC5N 4 3

9.21VDC 3.83VDC (R) 0VDC (T)
VSF L3333 1uH R3331 C3335 .01uF R3335 33

9V3_VHF_VCO_3

9V3_VHF_VCO_2

9V3_VHF_VCO_1 G 9V3

2

4.97VDC 4.54VDC

VDDA_VHF_VCO_1 G VDDA VSF_VHF_VCO_1 G VSF

NC

1

7.44VDC (R) 0VDC (T)

R3311 100 C3311 .022uF C3312 0.1uF NU R3312 100 NU L3331 68nH C3331 10pF NU L3332 100nH

47 C3332 0.1uF C3333 0.1uF C3348 .01uF

C3336 .01uF

C3337 0.1uF

C3324 .01uF

4.40VDC 1.53VDC (R) 0VDC (T)

L3302 100nH

R3319 47K NU L3311 100nH NU R3313 1K NU

Q3304
BFQ67W C3334 .022uF C3341 1000pF R3342 R3341 39 L3341 8nH C3342 3pF L3346 35.5nH

R3303 2.2K

C3344 1.8pF

D3341 L3344 1uH

11-14dBm (R)
RXINJ_VHF_VCO_1 G RXINJ C3306 5.1pF C3301 15pF NU L3301 18nH

4.78VDC (R) 4.27VDC (T)

4.78VDC (R) 4.22VDC (T)

C3302 6.8pF

R3321 10K

0.92VDC (R) 0VDC (T)

C3345 20pF R3336 15K L3343 180nH

2.5-11VDC

R3343 100 C3346 .01uF

VCTRL_VHF_VCO_1 G VCTRL

2.18VDC (R) 0VDC (T)

R3316 0 R3306 22 C3305 5.6pF

Q3301
C3304 R3301 75 R3308 0 R3304 1K NU NU NU R3318 22

U3301
50U54 18 14
VCC_BUFFERS TX_IADJ RX_IADJ SUPER_FLTR COLL_RFIN RX_BASE RX_EMITTER TX_BASE TX_EMITTER FLIP_IN TRB_IN VCC_LOGIC

220

330pF

Q3302
R3305 220 NU R3307 220 NU NU

C3314 6.8pF

10 TX_OUT 8 12

RX_OUT PRESC_OUT

TX_SWITCH

R3302 100

C3303 .01uF

2.56VDC (R) 2.66VDC (T)

C3313 330pF NU TXINJ_VHF_VCO_1 TXINJ G

R3315 220 NU

C3315 15pF

17 GND_BUFFERS 11 GND_FLAG 9

1.49VDC (R) 0VDC (T)

GND_LOGIC

R3314 10 NU

R3317 10K NU

C3316 3.3pF

7 RX_SWITCH 13

1 2 3 4 5 NC 6 NC 16 15 20 19 R3351 20K

L3345 1uH

C3347 .01uF

R3353

VCOBIAS_1_VHF_VCO_1 G VCOBIAS_1

1.42VDC (R) 0VDC (T)
C3351 .01uF R3355 20K R3352 12K C3352 .022uF

100K R3354 VCOBIAS_2_VHF_VCO_1 G VCOBIAS_2 150K

0-5dBm (T)

4.52VDC (R) 0VDC (T)

C3317 33pF

L3317 33nH

0VDC (R) 4.52VDC (T)
C3355 PRESC_VHF_VCO_1 PRESC G

0VDC (R) 1.92VDC (T)

L3351 1uH

-2 to 7dBm

L3318 100nH

R3323 VSF 1K C3361 C3318 5.6pF 1000pF R3361 .01uF

R3356 12K

C3356 .022uF C3364 15pF

C3357 7.5pF

D3361 L3364 1uH

R3362 47 C3362 5.6pF C3363 68pF

TRB_VHF_VCO_1 TRB G

0VDC (R) 4.91VDC (T)
C3319 1000pF

220

L3361 56nH

L3362 68nH

L3363 56nH

C3365 1000pF

R3363 VSF 39K NU

R3364 47K D3362

4.52VDC (R) 2.62VDC (T)

G VCOMOD VCOMOD_VHF_VCO_1

SH3301 SHIELD

1

ZWG0131059-O
ZWG0131059-O

VHF (136-174 MHz) 25-45W LDMOS Voltage Controlled Oscillator
6881091C63-A

Chapter 11: 4-8

VHF (136-174 MHz) 25-45W LDMOS PCB 8486140B15, Schematics, and Parts Lists

9V3

R3026

Q3021

10K

FECNTL_2_VHF_FE_1 G FECNTL_2 C3029 330pF NU

R3006 10K C3026 0.1uF R3010 680

R3027 10K

9V3_VHF_FE_1 9V3 G 9V3_VHF_FE_2 C3000 3300pF R3011 4.7K

R3002 560 C3007 3300pF C3010 330pF C3011 3300pF

R3025 1.5K

L3031 C3028 .01uF C3027 .01uF R3028 390 R3031 51 560nH G C3035 18pF IF_VHF_FE_1 IF

D3000
NC K9V1__VHF_FE_1 K9V1 G C3003 3300pF 1 3 2

R3000 1.5K

Q3002
1K L3002 470nH C3022 .01uF R3024 390 C3030 1000pF R3016 10 R3023 R3003 1K 0 NU R3018 220 C3036 SP_3_1 2 1000pF C3018 4.7pF NU SP_3_3 3 SP_4_3 R3021 560 6 XFMR IO3 2 1 IO1 IO2 R3032 820 NU SP_3_2 C3014 7.5pF 56pF D3004 1 SP_4_1 4 120pF SP_4_2 C3013 R3013 3.3K C3009 C3021 R3030 10 NU R3033 0 L3032 150nH C3034 82pF

R3012 SP_1_2 C3002 9.1pF SP_1_1 SP_2_2

D3011

3.6VDC
C3012 1000pF

RXIN_VHF_FE_1 RXIN G

SP_2_1

D3001
2 C3001 4.7pF SP_1_3 3 SP_2_3 1

T3001
3 IO4

D3031
3 2 1

T3002
XFMR 4

330pF C3008 1000pF

6

Q3001
R3004 1.5K

R3001 100K FECNTL_1_VHF_FE_1VLTG FECNTL_1 G C3023 330pF NU C3024 3300pF NU R3019 47K

C3004 56pF

C3005 100pF

C3006 56pF

D3003

R3014 51

R3015 10

C3025 2.7pF NU R3009 100K C3015 56pF C3016 100pF C3017 43pF L3025 150nH NU R3034 820 NU R3035 0 NU

3.0-7.5V
C3019 1000pF C3020 1000pF

TP3001 L3034 G RXINJ RXINJ_VHF_FE_1 C3031 18pF NU C3032 13pF NU 33nH NU C3033 5.1pF R3036 1K NU

ZWG0131062-O

VHF (136-174 MHz) 25-45W LDMOS Receiver Front-End
6881091C63-A

ZWG0131062-O

VHF (136-174 MHz) 25-45W LDMOS PCB 8486140B15, Schematics, and Parts Lists

Chapter 11: 4-9

FL3115 9180469V04 CFWC455F 2 OUT NU

1 IN

GND1

9V3

4 GND2

3

9V3

U3111-1
14 VDD VSS CNTL GND1 4 GND2 7 13 MC74HC4066 9V3 9V3_VHF_IF_1 9V3 G 9V3_VHF_IF_2 R3104 100 NU 5V_VHF_IF_1 5V G 100 R3108 620 5V R3106 27K C3104 R3107 6.8K C3110 C3116 C3111 0.1uF R3117 27K R3118 6.8K C3122 R3105 5V 390 R3116 330 C3121 0.1uF MC74HC4066 3 R3115 R3114 100 NU 9V3 9V3 3 CNTL 7 12

U3111-4 FL3111
9180469V03 CFWC455G 11 VDD VSS 10 1 1 IN OUT 2 14

U3115-1
14 2 VDD VSS CNTL 7 13 1 1 IN

FL3113
9180468v04 CFUCJ455F 11 CNTL

U3115-4
14 OUT 2 VDD VSS 7 R3153 10K MC74HC4066 9V3 10

2

MC74HC4066

MC74HC4066 3

GND

12

Q3151
R3151 10K BWSELECT_VHF_IF_1 G BWSELECT

U3111-2
14

U3111-3 FL3112
9180469V06 CFWC455D 8 CNTL 7 GND1 4 GND2 5 6 MC74HC4066 VDD VSS CNTL 7 9 4 1 IN OUT 2 14

U3115-2
14 VDD VSS CNTL 7 5 GND 6 CNTL 7

FL3114
9180468V06 CFUCJ455D 8 4 1 IN OUT 2

14

U3115-3
C3151 .01uF 9 9V3

12.5kHz 0VDC 20/25kHz 5VDC

3.9VDC
3 VDD VSS

3

VDD VSS

MC74HC4066

R3154 10K

3

Q3152
R3152 10K

0.1uF

3VDC

27pF C3112 82pF

0.1uF

.039uF C3123 .039uF R3144 2.4K C3148 220pF NU

R3145 3.3K C3152 .01uF

FL3101
IFIN_VHF_IF_1 IF G 1000pF C3101 2.2pF NU L3100 620nH NU C3100 12R16 3 IN OUT 6 L3101 620nH C3103

FL3102
12R16 C3115 3 IN OUT 1 GND1 2 GND2 4 GND3 5 GND4 6 22pF

Q3102

3VDC

C3145 0.1uF

Q3101
33pF

0.75VDC
R3102 10 C3113 9.1pF NU

0.75VDC

1 2 4 9 7 10 14 12 18 IFAMPIN 19 IFAMP_DEC1

1 GND1 2 GND2 4 GND3 5 GND4

R3113 330 R3112 10

D3101
5V

C3137 .039uF

Y3102
455KHz C3142 0.1uF 15 R3135 1.2K 45B02 1 3

C3102 15pF

R3101 12K

L3111 620nH

L3112 620nH

C3114 18pF

R3111 12K

RFIN RFIN_DEC OSCIN RSSI_FEED AUDIO_FEED QUADIN LIMIN LIM_DEC2

R3130 51

2 GND

6 C3134 0.1uF

VCC

U3101

OSCOUT RSSIOUT AUDIOOUT LIMOUT LIM_DEC1

SA616 MIXOUT C3133 10uF

16 IFAMPOUT 17 IFAMP_DEC2

C3132 0.1uF R3124 1K R3123 0 NU C3124 33pF

C3144 0.1uF

5V

20

45J84 44.395MHz 3 OUT GND1 GND IN 1

3 5 8 11 13

Y3101

C3135

C3141 0.1uF

R3141 390

C3143 120pF

Q3141
33pF C3136 22pF C3131 1pF NU R3132 15K C3139 0.1uF R3134 10K C3140 0.1uF

4

L3124 1uH

2

R3142 1.8K

fundamental xtal Y3101 R3123 R3124 C3124 L3124 C3136 4880606B09 0662057B47 0 NOTPLACED NOTPLACED NOTPLACED 2113740L29 30pF

3rd overtone xtal 4802245J84 NOTPLACED 0662057A49 1K 2113740L30 33pF 2462587N68 1uH 2113740F35 22pF 12K RSSI_VHF_IF_1 R3146 680 R3147 G RSSI R3133 8.2K C3146 4700pF C3147 0.1uF DISCAUDIO_VHF_IF_1 G DISCAUDIO

ZWG0131060-O
ZWG0131060-O

VHF (136-174 MHz) 25-45W LDMOS IF
6881091C63-A

Chapter 11: 4-10

VHF (136-174 MHz) 25-45W LDMOS PCB 8486140B15, Schematics, and Parts Lists

VHF 25-45W PCB 8486140B15 Parts List Circuit Ref
C3000 C3001 C3002 C3003 C3004 C3005 C3006 C3007 C3008 C3009 C3010 C3011 C3012 C3013 C3014 C3015 C3016 C3017 C3019 C3020 C3021 C3022 C3026 C3027 C3028 C3030 C3033 C3034 C3035 C3036 C3100 C3102 C3103 C3104 C3110 C3111 C3112 C3114 C3115 C3116 C3121 C3122 C3123 C3124 C3132 C3133 C3134 C3135 C3136 C3137 C3139 C3140

Motorola Part No.
2113741F37 2113740F19 2113740F26 2113741F37 2113740F45 2113740F51 2113740F45 2113741F37 2113741F25 2113741F13 2113741F13 2113741F37 2113741F25 2113740F45 2113740F24 2113740F45 2113740F51 2113740F42 2113741F25 2113741F25 2113740F53 2113741F49 2113743E20 2113741F49 2113741F49 2113741F25 2113740F20 2113740F49 2113740F33 2113741F25 2113741F25 2113740F31 2113740F39 2113743E20 2113740F37 2113743E20 2113740F49 2113740F33 2113740F35 2113743E20 2113743E20 2113743E11 2113743E11 2113740L30 NU 2113743E20 2311049A57 2113743E20 2113740L30 2113740F35 2113740L29 2113743E11 2113743E20 2113743E20

Circuit Ref
C3141 C3142 C3143 C3144 C3145 C3146 C3147 C3151 C3152 C3202 C3203 C3205 C3206 C3208 C3209 C3210 C3211 C3212 C3213 C3214 C3215 C3221 C3222 C3224 C3225 C3226 C3227 C3228 C3229 C3231 C3232 C3233 C3234 C3235 C3242 C3243 C3244 C3245 C3246 C3247 C3251 C3252 C3253 C3254 C3255 C3263 C3302 C3303 C3306 C3311 C3314 C3315 C3316 C3317 C3318 C3319

Motorola Part No.
2113743E20 2113743E20 2113740F53 2113743E20 2113743E20 2113741F41 2113743E20 2113741F49 2113741F49 2113741F49 2113741F49 2113741F49 2311049A57 2113743E20 2113743E20 2311049A40 2113743E20 2113743E07 2311049A40 2311049A09 2311049A09 2113743E20 2113743E20 0882422W23 2113743E20 2113740F25 2113740F51 2113743E20 2113743E12 2113741F49 2113741F49 2311049A40 2113743E20 2113741F49 2113740F59 2113740F59 2113740F59 2113740F59 2113740F59 2113740F27 2113743E20 2113741F25 2311049A56 2113741F49 2311049A40 2113743E20 2113740F23 2113741F49 2113740F20 2113743E07 2113740F23 2113740F31 2113740F15 2113740F39 2113740F21 2113741F25

Description
.10 UF 10% .10 UF 10% 120 .10 UF 10% .10 UF 10% 4700 .10 UF 10% 10000 10000 10000 10000 10000 A/P 10UF 10% 16V .10 UF 10% .10 UF 10% 2.2 UF 10% .10 UF 10% .022UF GLOBAL TANT 10% 2.2 UF 2.2 UF 10% 2.2 UF 10% .10 UF 10% .10 UF 10% FILM SM 1.0 UF 15V 5% .10 UF 10% 8.2 100 .10 UF 10% .047UF 10% X7R 10000 10000 GLOBAL CAP TANT 10% 2.2 UF .10 UF 10% 10000 220 220 220 220 220 10 .10 UF 10% 1000 CAP TAN CHIP A/P 4.7 20 10 10000 GLOBAL TANT 10% 2.2 UF .10 UF 10% 6.8 10000 5.1 CER .022UF 6.8 15 3.3 33 5.6 1000

Circuit Ref
C3324 C3332 C3333 C3334 C3335 C3336 C3337 C3341 C3342 C3344 C3345 C3346 C3347 C3348 C3351 C3352 C3355 C3356 C3357 C3361 C3362 C3363 C3364 C3365 C3400 C3401 C3402 C3403 C3404 C3405 C3406 C3410 C3411 C3412 C3414 C3415 C3416 C3417 C3418 C3419 C3420 C3421 C3422 C3423 C3424 C3425 C3426 C3427 C3428 C3431 C3433 C3434 C3435 C3436 C3437 C3438

Motorola Part No.
2113741F49 2113743E20 2113743E20 2113743E07 2113741F49 2113741F49 2113743E20 2113741F25 2113740L05 2113740F09 2113740L25 2113741F49 2113741F49 2113741F49 2113741F49 2113743E07 2113741F49 2113743E07 2113740F24 2113741F25 2113740F21 2113740F47 2113740F31 2113741F25 2113740F63 2113740F63 2113743E07 2113740F39 2113740F39 2113740F67 2113740F67 2113743E07 2113743E07 2113740F63 2113740F63 2113743E07 2113740F63 2113740F43 2113740F39 2113740F63 2113740F63 2113741A57 2113740A67 2311049A08 2113740F67 2113743E07 2113740F63 2113741F33 2113741F33 2111078B43 2111078B36 2113741A45 2113740A67 2311049A45 2113741A57 2111078B59

Description
10000 .10 UF 10% .10 UF 10% .022UF 10000 10000 .10 UF 10% 1000 3.0 PF0.1PF 30 1.8 20.0 PF .25PF 10000 10000 10000 10000 .022UF 10000 .022UF 7.5 1000 5.6 68 15 1000 330 5% 330 5% .022UF 33 33 470 5% 470 5% .022UF .022UF 330 5% 330 5% .022UF 330 5% 47 33 330 5% 330 5% 33K +5% (2160521A31) 330PF +5% KEMET CAPS 470 5% .022UF 330 5% 2200 2200 CAP RF 56 5 NPO 100V 10000PF +5% 330PF +5% 10 10 35 33K +5% (2160521A31) RF 470 5 NPO 100V

Circuit Ref
C3439 C3440 C3451 C3453 C3466 C3471 C3475 C3476 C3477 C3501 C3502 C3503 C3504 C3505 C3506 C3507 C3508 C3510 C3511 C3512 C3514 C3515 C3523 C3527 C3528 C3529 C3530 C3531 C3543 C3544 C3545 C3546 C3550 C3551 C3555 C3561 C3563 C3564 C3565 C3566 C3567 C3568 C3569 C3570 D3000 D3001 D3003 D3004 D3011 D3031 D3101 D3201 D3221 D3341 D3361 D3362

Motorola Part No.
2111078B59 2113741F25 2113740A79 2113740F67 2113740A79 2113743E07 2113740F33 2111078B47 2111078B47 2113741F33 2113741F33 2113740F67 2113741F49 2311049A07 2113741F33 2113740F51 2113740F67 2113740F67 2113741F25 2113741F25 2113741A45 2113741F33 2113740A79 2111078B37 2111078B37 2111078B41 2111078B08 211