STV0056A

SATELLITE SOUND AND VIDEO PROCESSOR

September 1996

ADVANCE DATA

SOUND

.

TWO INDEPENDENT SOUND DEMODULA-

TORS

.

PLL DEMODULATION WITH 5-10MHz FRE-

QUENCY SYNTHESIS

.

PROGRAMMABLE

FM

DEMODULATOR

BANDWIDTH ACCOMODATING FM DEVIA-

TIONS FROM

±30kHz TILL ±400kHz

.

PROGRAMMABLE 50/75

µs, J17 OR NO DE-

EMPHASIS

.

WEGENER PANDA SYSTEM

.

TWO AUXILIARY AUDIO INPUTS AND OUT-

PUTS

.

GAIN

CONTROLLED

AND

MUTEABLE

AUDIO OUTPUTS

.

HIGH IMPEDANCE MODE AUDIO OUTPUTS

FOR TWIN TUNER APPLICATIONS

VIDEO

.

COMPOSITE VIDEO 6-bit 0 to 12.7dB GAIN

CONTROL

.

COMPOSITE

VIDEO

SELECTABLE

IN-

VERTER

.

TWO SELECTABLE VIDEO DE-EMPHASIS

NETWORKS

.

6 x 3 VIDEO MATRIX

.

BLACK LEVEL ADJUSTABLE OUTPUT FOR

ON-BOARD VIDEOCRYPT DECODER

.

HIGH IMPEDANCE MODE VIDEO OUTPUTS

FOR TWIN TUNER APPLICATIONS

MISCELLANEOUS

.

22kHz TONE GENERATION FOR LNB CON-

TROL

.

I

.

LOW POWER STAND-BY MODE WITH AC-

TIVE AUDIO AND VIDEO MATRIXES

DESCRIPTION

The STV0056A BICMOS integrated circuit realizes

all the necessary signal processing from the tuner

to the Audio/Video input and output connectors

regardless the satellite system.

This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without no tice.

SHRINK56

(Plastic Package)

ORDER CODE : STV0056A

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FC R

PK IN R

LEVEL R

S1 VID RTN

S3 VID RTN

VOL R

S3 VID OUT

S1 VID OUT

S2 VID OUT

VOL L

S2 VID RTN

S2 OUT L

CLAMP IN

S2 OUT R

UNCL DEEM

VIDEEM2/22kHz

V 12V

VIDEEM1

B-BAND IN

V GND

S2 RTN L

S2 RTN R

FM IN

S3 RTN L

S3 RTN R

S3 OUT L

S3 OUT R

AGC L

A GND R

FC L

PK IN L

LEVEL L

PK OUT L

PK OUT R

I

REF

CPUMP R

U75 R

DET R

AMPLK R

A 12V

V

REF

A GND L

AGC R

AMPLK L

U75 L

DET L

CPUMP L

GND 5V

V

XTL

HA

J17 R

J17 L

SDA

SCL

I/O/22kHz

PIN CONNECTIONS

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