Philips tda4565 DATASHEETS

INTEGRATED CIRCUITS

DATA SH EET

TDA4565

Colour transient improvement
circuit

Product specification
File under Integrated Circuits, IC02

November 1989

Philips Semiconductors Product specification

Colour transient improvement circuit TDA4565

GENERAL DESCRIPTION

The TDA4565 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 730 ns to 1000 ns in steps of 90 ns and additional fine adjustment of 50 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

14-18

= 1.2 kΩ;

(note 1)

V

= 0 to 2.5 V t

15-18

V

= 3.5 to 5.5 V t

15-18

V

= 6.5 to 8.5 V t

15-18

V

= 9.5 to 12 V t

15-18

Y-signal attenuation 0.5 MHz α
(R-Y) and (B-Y) signal

attenuation α
output transient time t

P

P

17-12
17-12
17-12
17-12

Y

cd

tr

10.8 12 13.2 V

− 35 50 mA

670 730 790 ns
760 820 880 ns
850 910 970 ns
940 1000 1060 ns
0 6.5 8.0 dB

−10 +1dB

− 100 200 ns

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.

November 1989 2

Philips Semiconductors Product specification

Colour transient improvement circuit TDA4565

November 1989 3

Fig.1 Block diagram.

Philips Semiconductors Product specification

Colour transient improvement circuit TDA4565

November 1989 4

Fig.2 Internal pin circuit diagram.