TDA4568 查看數據表（PDF） - Philips Electronics
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TDA4568 Datasheet PDF : 10 Pages
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Philips Semiconductors
Luminance signal delay circuit
Preliminary specification
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.
Supply voltage (pin 10)
Supply current (pin 10)
Y-signal delay at pin 12
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
S1 open;
R14−18 = 1.2 kΩ;
note 1
0.5 MHz
VP
IP
t17-12
t17-12
t17-12
t17-12
αY
10.8 12
−
22
490
550
580
640
670
730
760
820
0
1
Note
1. Delay time is proportional to resistor R14-18.
R14-18 also influences the bandwidth; a value of 1.2 kΩ results in a bandwidth of 5 MHz (typ.).
MAX.
13.2
−
UNIT
V
mA
610
ns
700
ns
790
ns
880
ns
2
dB
PACKAGE OUTLINE
18-lead DIL; plastic (SOT102); SOT102-1; 1996 November 27.
May 1989
2
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