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TEA5101A
RGB HIGH VOLTAGE VIDEO AMPLIFIER
. . . . . .
BANDWIDTH : 10MHz TYPICAL RISE AND FALL TIME : 50ns TYPICAL CRT CATHODES CURRENT OUTPUTS FOR PARALLEL OR SEQUENTIAL CUT-OFF OR DRIVE ADJUSTMENT FLASHOVER PROTECTION POWER DISSIPATION : 3.5W ESD PROTECTED
DESCRIPTION The TEA5101A includes three video amplifiers desi-gned with a high voltage DMOS/bipolar technology. It drives directly the three CRT cathodes. The device is protected against flashovers. Due to its three cathode current outputs, the TEA5101A can be used with both parallel and sequential sampling applications. PIN CONNECTIONS (top view)
MULTIWATT 15 (Plastic Package) ORDER CODE : TEA5101A
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
BLUE FEEDBACK BLUE CATHODE CURRENT BLUE OUTPUT GREEN FEEDBACK GREEN CATHODE CURRENT GREEN OUTPUT RED FEEDBACK GROUND RED OUTPUT RED CATHODE CURRENT V DD HIGH VOLTAGE RED INPUT GREEN INPUT V CC LOW VOLTAGE BLUE INPUT
Tab connected to Pin 8
5101A-01.EPS
June 1993
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TEA5101A
PIN FUNCTION
N° 1 2 3 4 5 6 Function Blue Input VCC Green Input Red Input VDD Red Cathode Current Description Input of the "blue" amplifier. It is a virtual ground with 3.8V bias voltage, 15 microamperes input bias current with 14k input resistance. Low voltage power supply, typically 12V. See Pin 1. See Pin 1. High voltage power supply, typically 200V. Provides the video processor with a copy of the DC current flowing into the red cathode, for automatic cut-off or gain adjustment. If this control is not used, Pin 6 must be grounded. Output driving the red cathode. Pin 7 is internally protected against CRT arc discharges by a diode limiting the output voltage to VDD. Also connected to the heat sink. Output driving the feedback resistor network for the red amplifier. See Pin 7. See Pin 6. See Pin 9. See Pin 6. See Pin 9.
5101A-01.TBL
7 8 9 10 11 12 13 14 15
Red Output Ground Red Feedback Green Output Green Cathode Current Green Feedback Blue Output Blue Cathode Current Blue Feedback
See Pin 7.
BLOCK DIAGRAM OF EACH CHANNEL
VDD 5 40k 13 20k (10, 7) 15 (12, 9)
0.8k 14 (11, 6) 1k
2 2.5k 1 (3, 4) 35 35 6k 3pF
350 1.5k
5101A-02.EPS
GND 8
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TEA5101A
ABSOLUTE MAXIMUM RATINGS
Symbol VDD VCC IO IO IF IF Ij Tj Toper Tstg Parameter Supply High Voltage Supply Low Voltage Output Current to VDD to Ground Output Current to VDD to Ground Input Current Junction Temperature Operating Ambient Temperature Storage Temperature Pin 5 Pin 2 Pins 7 - 10 - 13 Value 250 35 Protected 8 Pins 9 - 12 - 15 45 45 60 150 0 to 70 55 to + 150 mA mA mA °C °C °C Unit V V
mA
Pins 1 - 3 - 4
THERMAL DATA
Max. Typ.
5101A-03.TBL 5101A-04.TBL
Symbol Rth(j-c) R th(j-a)
Parameter Maximum Junction Case Thermal Resistance Typical Junction Ambient Thermal Resistance
Value 3 35
Unit °C/W °C/W
ELECTRICAL CHARACTERISTICS Tamb = 25oC ; VCC = 12V ; VDD = 200V ; AV = 50 (unless otherwise specified)
Symbol VDD VCC IDD ICC Vsath RON BW High Supply Voltage Low Supply Voltage High Voltage Supply Internal DC Current (Vout 100V) (without the current due to the feedback network ) Low Voltage Supply DC Current Output Saturation Voltage (High level) IO = 10 µA Output Mos Transistor (Low level) RON @ IO = 3 mA Bandwidth ( 3db) (measured on CRT cathodes) (CLOAD : 10pF R Protect = 1k Vout = 100V) Vout : 50 VPP Vout : 100 VPP Rise Time and Fall Time : measured between 10% and 90% of output pulse (C LOAD : 10 pF R Protect = 1 k Vout = 100 V) Vout : 100 VPP Open Loop Gain Internal Power Dissipation (see calculation below) Internal Voltage Reference Internal Reference Voltage Difference Between 2 Channels Voltage Reference Temperature Coefficient IIB RI Input Bias Current (Vout : 100 V) Input Resistance Pins 1-3-4 5 15 14 Pins 1-3-4 3.55 47 Parameter Pin 5 Pin 2 Pin 5 Pin 2 Pins 7-10-13 Pins 7-10-13 19 10 Min. Typ. 200 12 8 33 3 1.7 Max. 220 15 12 47 10 Unit V V mA mA V k
10 8 50
MHz MHz ns
TR - TF
GO P VREF
50 3.5 3.8 4.05 5
dB W V % mV/°C µA k
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5101A-02.TBL
TEA5101A
TYPICAL APPLICATION The TEA5101A consists of three independent amplifiers. Each of them includes : - A differential amplifier, the gain of which is fixed by external feedback resistors, - A voltage reference, - A PMOS transistor providing a copy of the cathode current, - A protection diode against CRT arc discharges.
VDD 200V VCC 12V
10µF
4.7µF
2
5 9
39k
VDD
1nF
220
10pF*
7 6
4
* optional
1.8k
1k
CATHODE 1
VREF
12
VDD
220
3
10 11
15
VDD
1
13 14
CUT-OFF SAMPLING
5101A-03.EPS
8
TEA5101A
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TEA5101A
APPLICATION INFORMATION PC BOARD LAYOUT The best performances of the high voltage video amplifier will be obtained only with a carefully designed PC board. Output to input capacitances are of particular importance. For a single amplifier, the input-output capacitance, in parallel with the relatively high feedback resis-tance, creates a pole in the closed-loop transfer function. A low parasitic capacitance (0.3pF) feedbackresistor and HF isolated printed wires are necessary. Further more, capacitive coupling from the output of an amplifier toward the input of another one may induce excessive crosstalk. POWER DISSIPATION The power dissipation consists of a static part and a dynamic part. The static dissipation varies with the output voltage. With VDD = 200V, Pstat = 2.6W typ(3.5W max) at VOUT = 100V, 1.5W typ at 150V and 3W typ at 50V (with R feedback = 39k). VOUT first value (100V) will be the reference. The dynamic dissipation depends on the signal spectrum and the load capacitance. - Dynamic power with a typical picture with 150 Vpp modulation is typically 1W. - For a sine wave, dynamic dissipation peramplifier is Pd = F x Cl x Vopp x Vdd x 0.8. The load capacitance CL includes CRT and board capacitance (10pF), and amplifier output capacitance (8pF) : total CL value is about 20pF. For a 5MHZ, 50 Vpp sine wave and a 20pF load capacitance, the maximum dynamic power is 2.5W. - Generally, the maximum dynamic power is reached with a white noise (tuner noise). - Typical value is about 2W. Total dissipation is typically 3.6W (2.6W + 1W). With a maximum static dissipation of 3.5W, total dissipation is : - 4.5W with a typical picture (UER pattern) - 5.5W with white noise
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TEA5101A
PACKAGE MECHANICAL DATA : 15 PINS PLASTIC MULTIWATT
Dimensions A B C D E F G G1 H1 H2 L L1 L2 L3 L4 L7 M M1 S S1 Dia. 1
Min.
Millimeters Typ.
Max. 5 2.65 1.6 0.55 0.75 1.4 17.91 20.2 22.6 22.5 18.1 17.75 10.9 2.9 4.6 5.3 2.6 2.6 3.85
Min.
Inches Typ.
Max. 0.197 0.104 0.063 0.022 0.030 0.055 0.705 0.795 0.890 0.886 0.713 0.699 0.429 0.114 0.181 0.209 0.102 0.102 0.152
1 0.49 0.66 1.14 17.57 19.6 22.1 22 17.65 17.25 10.3 2.65 4.2 4.5 1.9 1.9 3.65 0.019 0.026 0.045 0.692 0.772 0.870 0.866 0.695 0.679 0.406 0.104 0.165 0.177 0.075 0.075 0.144
0.039
1.27 17.78
0.050 0.700
17.5 10.7 4.3 5.08
0.689 0.421 0.169 0.200
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No licence is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without noti ce. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. © 1994 SGS-THOMSON Microelectronics - All Rights Reserved Purchase of I2C Components of SGS-THOMSON Microelectronics, conveys a license under the Philips I2C Patent. Rights to use these components in a I2C system, is granted provided that the system confo rms to the I2C Standard Specifications as defined by Philips. SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.
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MUL15V.TBL
PMMUL15V.EPS