TDA8446 Datasheet, PDF (2/16 Pages) NXP Semiconductors – Fast RGB/YC switch for digital decoding

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
V_CC
T_amb
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