STV0042 datasheet(2/24 Pages) STMICROELECTRONICS

2 / 24 page

PIN ASSIGNMENT

Pin Number

Name

Function

FC R

Audio Roll-off Right

SUM OUT

Noise Reduction Summing Output

PK IN

Noise Reduction Peak Detector Input

VOL R

Volume Controlled Audio Out Right

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

CLAMP IN

Sync-Tip Clamp Input

S2 OUT R

Fixed Level Audio Output Right

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

S2 RTN R

Auxiliary Audio Return Right

FM IN

FM Demodulator Input

AGC L

AGC Peak Detector Capacitor Left

SCL

2C Bus Clock

SDA

2C Bus Data

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

A 12V

Audio 12V Supply

AMPLK R

Amplitude Detector Capacitor Left

DET R

FM PLL Filter Right

U75 R

Deemphasis Time Constant Right

CPUMP R

FM PLL Charge Pump Capacitor Right

IREF

Current Reference Resistor

PK OUT

Noise Reduction Peak Detector Output

FC L

Audio Roll-off Left

A GND R

Audio Ground

STV0042A

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