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INTEGRATED CIRCUITS
DATA SH EET
TDA4568
Luminance signal delay circuit
Preliminary specification
File under Integrated Circuits, IC02
May 1989
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Philips Semiconductors Preliminary specification
Luminance signal delay circuit TDA4568
GENERAL DESCRIPTION
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 CONDITIONS SYMBOL MIN. TYP. MAX. UNIT
Supply voltage (pin 10) V
Supply current (pin 10) I
Y-signal delay at pin 12 S1 open;
R
= 1.2 kΩ;
14−18
note 1
= 0 to 2.5 V t
V
15−18
= 3.5 to 5.5 V t
V
15−18
= 6.5 to 8.5 V t
V
15−18
= 9.5 to 12 V t
V
15−18
Y-signal amplification 0.5 MHz α
P
P
17-12
17-12
17-12
17-12
Y
10.8 12 13.2 V
− 22 − mA
490 550 610 ns
580 640 700 ns
670 730 790 ns
760 820 880 ns
012dB
Note
1. Delay time is proportional to resistor R
R
also influences the bandwidth; a value of 1.2 kΩ results in a bandwidth of 5 MHz (typ.).
14-18
14-18
.
PACKAGE OUTLINE
18-lead DIL; plastic (SOT102); SOT102-1; 1996 November 27.
May 1989 2
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Philips Semiconductors Preliminary specification
Luminance signal delay circuit TDA4568
May 1989 3
Fig.1 Block diagram.
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Philips Semiconductors Preliminary specification
Luminance signal delay circuit TDA4568
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Fig.2 Internal pin circuit diagram.
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Philips Semiconductors Preliminary specification
Luminance signal delay circuit TDA4568
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
PARAMETER SYMBOL MIN. MAX. UNIT
Supply voltage range (pin 10) V
Voltage ranges to pin 18 (ground)
at pin 15 V
at pin 17 V
Current range at pins 11 and 12 I
Total power dissipation
= 150 °C; T
(T
j
=70°C) P
amb
Storage temperature range T
Operating ambient temperature range T
THERMAL RESISTANCE
P=V10-18
15-18
17-18
11, 12
tot
stg
amb
0 13.2 V
0V
P
V
07V
internally limited
− 1.1 W
−25 +150 °C
0 +70 °C
From junction to ambient (in free air) R
Note
1. Pins 13 and 14, DC potential not published.
th j−a
= 70 K/W
May 1989 5
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Philips Semiconductors Preliminary specification
Luminance signal delay circuit TDA4568
CHARACTERISTICS
V
P=V10-18
= 12 V; T
PARAMETER CONDITIONS SYMBOL MIN. TYP. MAX. UNIT
Supply (pin 10)
Supply voltage V
Supply current I
Y-signal path
Y-input voltage
(composite signal) capacitive
(peak-to-peak value) coupling V
Internal bias voltage during clamping V
Input current
during picture content I
during sync. pulse −I
Y-signal delay at pin 12 S1 open;
at V
at V
at V
at V
= 0 to 2.5 V t
15-18
= 3.5 to 5.5 V t
15-18
= 6.5 to 8.5 V t
15-18
= 9.5 to 12 V t
15-18
Fine adjustment of Y-signal
delay for all 4 steps
Signal delay between pin 1 1 and
pin 12
Dependency of delay time
on temperature − 0.001 − K
=25°C; measured in application circuit Fig.3; unless otherwise specified
amb
10.8 12 13.2 V
− 22 − mA
− 0.45 0.62 V
2.1 2.4 2.7 V
− 812µA
− 100 150 µA
R
14
P
P
17(p-p)
17-18
17
17
= 1.2 kΩ;
notes 1 and 2
490 550 610 ns
580 640 700 ns
670 730 790 ns
760 820 880 ns
− 37 − ns
160 180 200 ns
S1 closed t
S1 open t
17-18
17-18
17-18
17-18
17-12
11-12
∆t
17 12–
----------------------------t
17 12–
∆Tj⋅
−1
on supply voltage −−0.03 − V
Input switching current −I
Y-signal attenuation f = 0.5 MHz
pin 11 from pin 17 V
pin 12 from pin 17 V
Frequency response at
3 MHz referred to 0.5 MHz
pin 11 0 − 3.0 dB
pin 12 0 − 3.0 dB
May 1989 6
note 3
∆ t
17 12–
------------------------------- t
V
-------------------------------------------V
V
----------------------------------------- V
∆VP⋅
17 12–
15
/ V
11
17
/ V
12
17
3 MHz()
11
0.5 MHz()
11
3 MHz()
12
0.5 MHz()
12
−1
− 15 25 µA
−10 +1dB
0 + 1 + 2dB
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Philips Semiconductors Preliminary specification
Luminance signal delay circuit TDA4568
PARAMETER CONDITIONS SYMBOL MIN. TYP. MAX. UNIT
Frequency response at
5 MHz referred to 0.5 MHz
pin 11 −3.0 − 2.0 dB
note 3
V115 MHz()
------------------------------------------
V
0.5 MHz()
11
pin 12 −3.0 − 2.0 dB
----------------------------------------
0.5 MHz()
V
12
DC output voltage
V125 MHz()
pin 11 V
pin 12 V
11-18
12-18
1.8 2.3 2.6 V
9.8 10.3 10.8 V
Output current note 4
source I
sink −I
11, 12
11, 12
−−0.4 mA
−−1.0 mA
Notes
1. R
2. Delay time is proportional to resistor R
3. Frequency response measured with V
influences the bandwidth; a value of 1.2 kΩ results in a bandwidth of 5 MHz (typ.).
14-18
. Devices with suffix “A” require the value of the resistor to be 1.15 kΩ;
14-18
a 27 kΩ resistor connected in parallel with R
15-18
= 1.2 kΩ.
14-18
= 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 TDA4568
APPLICATION INFORMATION
(1) Switching sequence for delay times shown in Table 1.
(2) R
= 1.2kΩ for TDA4568.
14-18
= 1.15kΩ for TDA4568A (27 kΩ resistor connected in parallel to 1.2 kΩ).
R
14-18
Fig.3 Application diagram and test circuit.
Table 1 Switching sequence for delay times.
CONNECTION
(2)
VOLTAGE AT PIN 15 DELAY TIME (ns)
(a) (b) (c)
0 0 0 0 to 2.5 V 550
0 0 X 3.5 to 5.5 V 640
0 X X 6.5 to 8.5 V 730
X X X 9.5 to 12 V 820
Notes
1. When switch (S1) is closed the delay time is increased by 37 ns.
2. Where:X=connection closed; 0 = connection open
(1)
May 1989 8
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Philips Semiconductors Preliminary specification
Luminance signal delay circuit TDA4568
PACKAGE OUTLINE
DIP18: plastic dual in-line package; 18 leads (300 mil)
D
seating plane
L
Z
18
pin 1 index
e
b
SOT102-1
M
E
A
2
A
A
1
w M
b
1
b
2
10
E
c
(e )
1
M
H
1
0 5 10 mm
scale
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
A
A
A
UNIT
max.
mm
inches
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
OUTLINE
VERSION
SOT102-1
12
min.
max.
IEC JEDEC EIAJ
b
1.40
1.14
0.055
0.044
b
1
0.53
0.38
0.021
0.015
b
cD E e M
2
0.32
1.40
0.23
1.14
0.013
0.055
0.009
0.044
REFERENCES
21.8
21.4
0.86
0.84
May 1989 9
9
(1) (1)
6.48
6.20
0.26
0.24
L
e
1
M
3.9
8.25
3.4
7.80
0.15
0.32
0.13
0.31
EUROPEAN
PROJECTION
E
0.37
0.33
H
9.5
8.3
w
max.
0.2542.54 7.62
0.854.7 0.51 3.7
0.010.10 0.30
0.0330.19 0.020 0.15
ISSUE DATE
93-10-14
95-01-23
(1)
Z
Page 10
Philips Semiconductors Preliminary specification
Luminance signal delay circuit TDA4568
SOLDERING
Introduction
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”
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 (T
be necessary immediately after soldering to keep the temperature within the permissible limit.
(order code 9398 652 90011).
). If the printed-circuit board has been pre-heated, forced cooling may
stg max
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 This data sheet contains target or goal specifications for product development.
Preliminary specification This data sheet contains preliminary data; supplementary data may be published later.
Product specification This data sheet contains final product specifications.
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.
May 1989 10
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