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TDA8446T

Fast RGB/YC switch for digital decoding

Philips Electronics 

Philips Semiconductors

Fast RGB/YC switch for digital decoding

Product specification

TDA8446

FEATURES

• R, G, B clamped inputs

• Luminance and chrominance difference matrix

• Y-clamped inputs

• Fast switching between internal and external Y

• Chrominance input

• Amplifier with selectable gain

• 3-state switch for chrominance output.

APPLICATIONS

• Digital TV systems

• Desktop video architecture.

DESCRIPTION

The TDA8446 is a video switch which has been designed

for use in Digital Multistandard System Decoders (DMSD)

in digital video system. The device is intended for matrixing

incoming RGB signals and for switching between

luminance signals. It generates a SYNC signal and TTL

clamping pulses from any video signal with sync pulses.

QUICK REFERENCE DATA

SYMBOL

VCC

Tamb

PARAMETER

supply voltage

operating ambient temperature

MIN.

10.8

0

TYP.

−

−

MAX.

13.2

+70

UNIT

V

°C

ORDERING INFORMATION

TYPE NUMBER

TDA8446

TDA8446T

NAME

DIP20

SO28

PACKAGE

DESCRIPTION

plastic dual in-line package; 20 leads; (300 mil)

plastic small outline package; 28 leads; body width 7.5 mm

VERSION

SOT146-1

SOT136-1

1995 Feb 16

2

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