STV0056AF
SATELLITE SOUND AND VIDEO PROCESSOR
VIDEO
COMPOSITE VIDEO 6-bit 0 to 12.7dB GAIN
CONTROL
COMPOSITE VIDEO SELECTABLE INVERTER
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 GENERATIONFOR LNB CONTROL
I
2
C BUS CONTROL
CHIP ADDRESSES = 06
HEX
OR 46
HEX
LOW POWER STAND-BY MODE WITH AC-
TIVE AUDIO AND VIDEO MATRIXES
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SOUND
TWO INDEPENDENT SOUND DEMODULATORS
PLL DEMODULATION WITH 5-10MHz FRE-
QUENCY SYNTHESIS
PROGRAMMABLE FM
DEMODULATOR
BANDWIDTH ACCOMODATING FM DEVIA-
TIONS FROM
鹵30kHz
TILL
鹵400kHz
PROGRAMMABLE 50/75碌s, J17 OR NO DE-
EMPHASIS
WEGENER PANDA SYSTEM
TWOAUXILIARYAUDIO INPUTS ANDOUTPUTS
GAIN CONTROLLED AND MUTEABLE
AUDIO OUTPUTS
HIGH IMPEDANCE MODE AUDIO OUTPUTS
FOR TWIN TUNER APPLICATIONS
TQFP64 (10 x 10mm)
(Thin Plastic Quad Flat Pack)
ORDER CODE :
STV0056AF
DESCRIPTION
The STV0056AF BICMOS integratedcircuit realizes
all the necessary signal processing from the tuner to
theAudio/Videoinput andoutputconnectors regard-
less the satellite system.
February 1998
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