STV0056AF 查看數據表（PDF） - STMicroelectronics

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STV0056AF

SATELLITE SOUND AND VIDEO PROCESSOR

STMicroelectronics 

STV0056AF

GENERAL BLOCK DIAGRAM

From Tuner

From TV,

VCR/Decoder

From Tuner

22kHz to LNB

B-BAND 2

Video

Processing

4

2

FM

Demodulation

2 Channels

Wegener

Panda +

Deemphasis

STV0056AF

6x3

3

Video

Matrix

Audio

Matrix

3

+

Volume

I2C Bus

Interface

To TV, VCR/Decoder

Active in Stand-by

VIDEO PROCESSING BLOCK DIAGRAM

I/O/22kHz 25

B-BAND IN 16

LPF

NTSC

PAL

VIDEEM2/22kHz

9

VIDEEM1 UNCL DEEM

12

8

22kHz

TONE

G

±1

Baseband

Deemphasized

÷2

CLAMP IN

6

CLAMP

S3 VID RTN

61 CLAMP

S2 VID RTN

4 CLAMP

S1 VID RTN

60 CLAMP

STV0056AF

Normal

Decoder Return

VCR Return

TV Return

BLACK LEVEL

ADJUST

63 64

S3 VID OUT

To Decoder

2

S2 VID OUT

To VCR

To TV

7/27

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