STV0056 datasheet(2/26 Pages) STMICROELECTRONICS

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PIN ASSIGNMENT

Pin Number

Name

Function

FC R

Audio Roll-off Right

PK IN R

Noise Reduction Peak Detector Input Right

LEVEL R

Noise Reduction Level Right

S1 VID RTN

TV-Scart 1 Video Return

S3 VID RTN

Decoder-Scart Video Return

VOL R

Volume Controlled Audio Out Right

S3 VID OUT

Decoder-Scart Video Output

S1 VID OUT

TV-Scart 1 Video Output

S2 VID OUT

VCR-Scart 2 Video Output

VOL L

Volume Controlled Audio Out Left

S2 VID RTN

VCR-Scart 2 Video Return

S2 OUT L

Fixed Level Audio Output Left (to VCR)

CLAMP IN

Sync-Tip Clamp Input

S2 OUT R

Fixed Level Audio Output Right (to VCR)

UNCL DEEM

Unclamped Deemphasized Video Output

VIDEEM2/22kHz

Video Deemphasis 2 or 22kHz Output

V 12V

Video 12V Supply

VIDEEM1

Video Deemphasis 1

V GND

Video Ground

B-BAND IN

Base Band Input

S2 RTN L

Auxiliary Audio Return Left (from VCR)

S2 RTN R

Auxiliary Audio Return Right (from VCR)

FM IN

FM Demodulator Input

S3 RTN L

Auxiliary Audio Return Left (from decoder)

S3 RTN R

Auxiliary Audio Return Right (from decoder)

AGC L

AGC Peak Detector Capacitor Left

S3 OUT L

Auxiliary Audio Output L (to decoder)

S3 OUT R

Auxiliary Audio Output R (to decoder)

I/O/22kHz

Digital Input/Output or 22kHz Output

SCL

2C Bus Clock

SDA

2C Bus Data

Hardware Address

J17 R

J17 Deemphasis Time Constant Right

J17 L

J17 Deemphasis Time Constant Left

XTL

4/8MHz Quartz Crystal or Clock Input

VDD 5V

Digital 5V Power Supply

GND 5V

Digital Power Ground

CPUMP L

FM PLL Charge Pump Capacitor Left

DET L

FM PLL Filter Left

U75 L

Deemphasis Time Constant Left

AMPLK L

Amplitude Detector Capacitor Left

AGC R

AGC Peak Detector Capacitor Right

A GND L

Audio Ground

VREF

2.4V Reference

STV0056A

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