March 1991

2

Philips Semiconductors

Preliminary specification

Colour transient improvement circuit

TDA4566

GENERAL DESCRIPTION

The TDA4566 is a monolithic integrated circuit for colour-transient improvement (CTI) and luminance delay line in gyrator

technique in colour television receivers.

Features

• Colour transient improvement for colour difference signals (R-Y) and (B-Y) with transient detecting-, storage- and

switching stages resulting in high transients of colour difference output signals

• 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

Note

PACKAGE OUTLINE

18-lead DIL; plastic (SOT102); SOT102-1; 1996 November 27.

PARAMETER

CONDITIONS

SYMBOL

MIN.

TYP.

MAX.

UNIT

Supply voltage (pin 10)

10.8

12

13.2

V

Supply current (pin 10)

−

35

50

mA

Y-signal delay at pin 12

S1 open;

note 1

490

550

610

ns

580

640

700

ns

670

730

790

ns

760

820

880

ns

Y-signal amplification

0.5 MHz

α

Y

01

2

dB

(R-Y) and (B-Y) signal

attenuation

α

cd

−10

+1dB

output transient time

−

100

200

ns