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STV82X8 Datasheet(PDF) 4 Page - STMicroelectronics

Part No. STV82X8
Description  Digital Audio Decoder / Processor for BTSC Television/Video Recorders
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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STV82X8 Datasheet(HTML) 4 Page - STMicroelectronics

 
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Table of Contents
Chapter 1
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1.1
STV82x8 Overview ............................................................................................................13
1.1.1
Core Features ..........................................................................................................................................13
1.1.2
Software Information ...............................................................................................................................14
1.1.3
Electrical Features ...................................................................................................................................14
1.2
Typical Applications ........................................................................................................... 15
Chapter 2
System Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Chapter 3
Digital Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
3.1
Sound IF Signal .................................................................................................................. 19
3.2
Demodulation ..................................................................................................................... 19
Chapter 4
Dedicated Digital Signal Processor (DSP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
4.1
Back-end Processing .........................................................................................................21
4.2
Audio Processing ............................................................................................................... 22
4.3
ST WideSurround ............................................................................................................... 24
4.4
ST OmniSurround .............................................................................................................. 25
4.5
Dolby Pro Logic II Decoder ................................................................................................ 25
4.6
Bass Management .............................................................................................................25
4.6.1
Bass Management Configuration 0 .........................................................................................................26
4.6.2
Bass Management Configuration 1 .........................................................................................................26
4.6.3
Bass Management Configuration 2 .........................................................................................................27
4.6.4
Bass Management Configuration 3 .........................................................................................................28
4.6.5
Bass Management Configuration 4 .........................................................................................................29
4.7
SRS WOW and TruSurround XT ...................................................................................... 29
4.7.1
SRS TruSurround ....................................................................................................................................29
4.7.2
SRS WOW ...............................................................................................................................................30
4.8
Smart Volume Control (SVC) ............................................................................................. 30
4.9
ST Dynamic Bass/ST Bass Enhancer ............................................................................... 31
4.10
5-Band Audio Equalizer .....................................................................................................31
4.11
Bass/Treble Control ........................................................................................................... 31
4.12
Automatic Loudness Control .............................................................................................. 32
4.13
Volume/Balance Control .................................................................................................... 32
4.14
Soft Mute Control ............................................................................................................... 33
4.15
Beeper ................................................................................................................................ 33


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