TDA9171 Просмотр технического описания (PDF) - Philips Electronics

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TDA9171

YUV picture improvement processor based on histogram modification and blue stretch

Philips Electronics 

Philips Semiconductors

YUV picture improvement processor based

on histogram modification and blue stretch

BLOCK DIAGRAM

Preliminary specification

TDA9171

dbook, full pagewidth

AMPSEL

TAUHM

2

UIN

3

VIN

6

8

YIN

7

INPUT

AMPLIFIER

TDA9171

5

SC

AMPSEL

TIMING

AND

CONTROL

HISTOGRAM

MEASUREMENT

9 10 11 12 13

HM1 to HM5

SATURATION

COMPENSATION

BLM BLG

20 1

19

BLUE

STRETCH

18

UOUT

VOUT

NON-LINEAR

AMPLIFIER

HISTOGRAM

PROCESSOR

OUTPUT

14

AMPLIFIER

YOUT

AMPSEL

SUPPLY

AND

BIASING

4 16 15 17

NLC

VEE

VCC

Vref

MBE990

Fig.1 Block diagram.

1996 Jun 17

3

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