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STV0042A/Z
Analog Satellite Sound and Video Processor
Sound Features
s
Two Independent Sound Demodulators
s
PLL Demodulation with 5-10 MHz Frequency
Synthesis
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Programmable FM Demodulator Bandwidth
accommodating FM Deviations between 鹵30
and 鹵400 kHz
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Programmable 50/75 碌s or No De-emphasis
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Dynamic Noise Reduction (ANRS)
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One or Two Auxiliary Audio Inputs and
Outputs
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Gain-controlled and Mutable Audio Outputs
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High-impedance Mode Audio Outputs for
Twin Tuner Applications
Video Features
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Composite 6-bit Video with 0 to 12.7 dB Gain
Control
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Selectable Composite Video Inverter
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Two Selectable Video De-emphasis Networks
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4 x 2 Video Matrix
s
High-impedance Mode Video Outputs for
Twin Tuner Applications
SHRINK42
(Shrink Plastic Dual In-Line Package)
ORDER CODE:
STV0042A/Z
General Description
The STV0042 BICMOS integrated circuit is
designed for low-cost analog satellite receiver
applications.
The STV0042A/Z performs all the necessary signal
processing from the tuner to the Audio/Video input
and output connectors regardless of the satellite
system.
Miscellaneous Features
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22 kHz Tone Generation for LNB Control
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I虜C Bus Control: Chip Addresses = 06h
s
Low Power Stand-by Mode with Active Audio
and Video Matrices
September 2003
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