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INTEGRATED CIRCUITS
DATA SHEET
TDA4568 Luminance signal delay circuit
Preliminary specification File under Integrated Circuits, IC02 May 1989
Philips Semiconductors
Preliminary specification
Luminance signal delay circuit
GENERAL DESCRIPTION
TDA4568
The TDA4568 is an integrated circuit that provides the luminance signal delay in colour television receivers. Features · A luminance signal path (Y) which substitutes the conventional Y-delay coil with an integrated Y-delay line · Switchable delay time from 550 ns to 820 ns in steps of 90 ns and additional fine adjustment of 37 ns · Two Y output signals; one of 180 ns less delay QUICK REFERENCE DATA PARAMETER Supply voltage (pin 10) Supply current (pin 10) Y-signal delay at pin 12 S1 open; R14-18 = 1.2 k; note 1 t17-12 t17-12 t17-12 t17-12 0.5 MHz Y 490 580 670 760 0 550 640 730 820 1 610 700 790 880 2 ns ns ns ns dB CONDITIONS VP IP SYMBOL - MIN. 10.8 TYP. 12 22 - MAX. 13.2 UNIT V mA
V15-18 = 0 to 2.5 V V15-18 = 3.5 to 5.5 V V15-18 = 6.5 to 8.5 V V15-18 = 9.5 to 12 V Y-signal amplification Note
1. Delay time is proportional to resistor R14-18. R14-18 also influences the bandwidth; a value of 1.2 k results in a bandwidth of 5 MHz (typ.). PACKAGE OUTLINE 18-lead DIL; plastic (SOT102); SOT102-1; 1996 November 27.
May 1989
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Philips Semiconductors
Preliminary specification
Luminance signal delay circuit
TDA4568
May 1989
3
Fig.1 Block diagram.
Philips Semiconductors
Preliminary specification
Luminance signal delay circuit
TDA4568
May 1989
4
Fig.2 Internal pin circuit diagram.
Philips Semiconductors
Preliminary specification
Luminance signal delay circuit
RATINGS Limiting values in accordance with the Absolute Maximum System (IEC 134) PARAMETER Supply voltage range (pin 10) Voltage ranges to pin 18 (ground) at pin 15 at pin 17 Current range at pins 11 and 12 Total power dissipation (Tj = 150 °C; Tamb = 70 °C) Storage temperature range Operating ambient temperature range THERMAL RESISTANCE From junction to ambient (in free air) Note 1. Pins 13 and 14, DC potential not published. Rth j-a = Ptot Tstg Tamb - -25 0 1.1 +150 +70 V15-18 V17-18 I11, 12 0 0 VP 7 SYMBOL VP = V10-18 0 MIN.
TDA4568
MAX. 13.2
UNIT V V V
internally limited W °C °C
70
K/W
May 1989
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Philips Semiconductors
Preliminary specification
Luminance signal delay circuit
CHARACTERISTICS VP = V10-18 = 12 V; Tamb = 25 °C; measured in application circuit Fig.3; unless otherwise specified PARAMETER Supply (pin 10) Supply voltage Supply current Y-signal path Y-input voltage (composite signal) (peak-to-peak value) Internal bias voltage Input current during picture content during sync. pulse Y-signal delay at pin 12 S1 open; R14 = 1.2 k; notes 1 and 2 t17-18 t17-18 t17-18 t17-18 S1 closed t17-12 t11-12 490 580 670 760 - 160 550 640 730 820 37 180 I17 -I17 - - 8 100 capacitive coupling during clamping V17(p-p) V17-18 - 2.1 0.45 2.4 VP IP 10.8 - 12 22 CONDITIONS SYMBOL MIN. TYP.
TDA4568
MAX.
UNIT
13.2 -
V mA
0.62 2.7 12 150
V V µA µA
at V15-18 = 0 to 2.5 V at V15-18 = 3.5 to 5.5 V at V15-18 = 6.5 to 8.5 V at V15-18 = 9.5 to 12 V Fine adjustment of Y-signal delay for all 4 steps
610 700 790 880 - 200
ns ns ns ns ns ns
Signal delay between pin 11 and S1 open pin 12 Dependency of delay time on temperature
t 17 12 ----------------------------t 17 12 T j t 17 12 ------------------------------t 17 12 V P -I15 f = 0.5 MHz V11 / V17 V12 / V17 note 3 V 11 ( 3 MHz ) ------------------------------------------V 11 ( 0.5 MHz ) V 12 ( 3 MHz ) ----------------------------------------V 12 ( 0.5 MHz )
- - - -1 0
0.001
- - 25 +1 +2
K-1 V-1 µA dB dB
on supply voltage Input switching current Y-signal attenuation pin 11 from pin 17 pin 12 from pin 17 Frequency response at 3 MHz referred to 0.5 MHz pin 11
-0.03 15 0 +1
0
- -
3.0
dB
pin 12
0
3.0
dB
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Philips Semiconductors
Preliminary specification
Luminance signal delay circuit
TDA4568
PARAMETER Frequency response at 5 MHz referred to 0.5 MHz pin 11
CONDITIONS note 3
SYMBOL
MIN.
TYP.
MAX.
UNIT
V 11 ( 5 MHz ) ----------------------------------------V 11 ( 0.5 MHz ) V 12 ( 5 MHz ) --------------------------------------V 12 ( 0.5 MHz ) V11-18 V12-18 note 4 I11, 12 -I11, 12
-3.0 -3.0
- -
2.0
dB
pin 12 DC output voltage pin 11 pin 12 Output current source sink Notes
2.0
dB
1.8 9.8 - -
2.3 10.3 - -
2.6 10.8 0.4 1.0
V V mA mA
1. R14-18 influences the bandwidth; a value of 1.2 k results in a bandwidth of 5 MHz (typ.). 2. Delay time is proportional to resistor R14-18. Devices with suffix "A" require the value of the resistor to be 1.15 k; a 27 k resistor connected in parallel with R14-18 = 1.2 k. 3. Frequency response measured with V15-18 = 9.5 V and switch S1 open. 4. Output current measured with emitter follower with constant current source of 0.6 mA.
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Philips Semiconductors
Preliminary specification
Luminance signal delay circuit
APPLICATION INFORMATION
TDA4568
(1) Switching sequence for delay times shown in Table 1. (2) R14-18 = 1.2 k for TDA4568. R14-18 = 1.15 k for TDA4568A (27 k resistor connected in parallel to 1.2 k).
Fig.3 Application diagram and test circuit.
Table 1
Switching sequence for delay times. CONNECTION (2) VOLTAGE AT PIN 15 (a) (b) 0 0 X X 0 X X X (c) 0 to 2.5 V 3.5 to 5.5 V 6.5 to 8.5 V 9.5 to 12 V 550 640 730 820 DELAY TIME (ns) (1)
0 0 0 X Notes
1. When switch (S1) is closed the delay time is increased by 37 ns. 2. Where : X = connection closed; 0 = connection open
May 1989
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Philips Semiconductors
Preliminary specification
Luminance signal delay circuit
PACKAGE OUTLINE DIP18: plastic dual in-line package; 18 leads (300 mil)
TDA4568
SOT102-1
D seating plane
ME
A2
A
L
A1
c Z e b1 b 18 10 b2 MH w M (e 1)
pin 1 index E
1
9
0
5 scale
10 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches A max. 4.7 0.19 A1 min. 0.51 0.020 A2 max. 3.7 0.15 b 1.40 1.14 0.055 0.044 b1 0.53 0.38 0.021 0.015 b2 1.40 1.14 0.055 0.044 c 0.32 0.23 0.013 0.009 D (1) 21.8 21.4 0.86 0.84 E (1) 6.48 6.20 0.26 0.24 e 2.54 0.10 e1 7.62 0.30 L 3.9 3.4 0.15 0.13 ME 8.25 7.80 0.32 0.31 MH 9.5 8.3 0.37 0.33 w 0.254 0.01 Z (1) max. 0.85 0.033
Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT102-1 REFERENCES IEC JEDEC EIAJ EUROPEAN PROJECTION
ISSUE DATE 93-10-14 95-01-23
May 1989
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Philips Semiconductors
Preliminary specification
Luminance signal delay circuit
SOLDERING Introduction
TDA4568
There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities. In these situations reflow soldering is often used. This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our "IC Package Databook" (order code 9398 652 90011). Soldering by dipping or by wave The maximum permissible temperature of the solder is 260 °C; solder at this temperature must not be in contact with the joint for more than 5 seconds. The total contact time of successive solder waves must not exceed 5 seconds. The device may be mounted up to the seating plane, but the temperature of the plastic body must not exceed the specified maximum storage temperature (Tstg max). If the printed-circuit board has been pre-heated, forced cooling may be necessary immediately after soldering to keep the temperature within the permissible limit. Repairing soldered joints Apply a low voltage soldering iron (less than 24 V) to the lead(s) of the package, below the seating plane or not more than 2 mm above it. If the temperature of the soldering iron bit is less than 300 °C it may remain in contact for up to 10 seconds. If the bit temperature is between 300 and 400 °C, contact may be up to 5 seconds. DEFINITIONS Data sheet status Objective specification Preliminary specification Product specification Limiting values Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information Where application information is given, it is advisory and does not form part of the specification. LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale. This data sheet contains target or goal specifications for product development. This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains final product specifications.
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