November 1985

2

Philips Semiconductors

Product specification

Switch for CTV receivers

TDA8440

GENERAL DESCRIPTION

The TDA8440 is a versatile video/audio switch, intended to

be used in CTV receivers equipped with an AUXILIARY

VIDEO/AUDIO plug.

It provides two 3-state switches for audio channels and

one 3-state switch for the video channel and a video

amplifier with selectable gain (times 1 or times 2).

The integrated circuit can be used in conjunction with a

microcontroller from the MAB8400 family, and is controlled

directly by d.c. switching signals.

Features

• Combined analogue and digital circuitry gives maximum

flexibility in channel switching

• 3-state switches for all channels

• Selectable gain for the video channels

• Sub-addressing facility

voltages)

• External OFF command

• System expansion possible up to 7 devices (14 sources)

• Static short-circuit proof outputs

QUICK REFERENCE DATA

PACKAGE OUTLINE

18-lead DIL; plastic (SOT102); SOT102-1; 1996 November 19.

Supply voltage range

10 to 13,2 V

Supply current (without load)

typ.

33 mA

max.

50 mA

Storage temperature

max.

+ 125 °C

Operating ambient temperature range

0 to

+ 70 °C