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STV82X8 Datasheet(PDF) 22 Page - STMicroelectronics

Part # STV82X8
Description  Digital Audio Decoder / Processor for BTSC Television/Video Recorders
Download  157 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STV82X8 Datasheet(HTML) 22 Page - STMicroelectronics

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Dedicated Digital Signal Processor (DSP)
STV82x8
22/157
The main features depend on the path:
FM Channel
— DC Removal
—Prescaling
— De-emphasis (50 or 75 us)
— Stereo Dematrix
Input SCART Channel
— DC Removal
—Prescaling
Input I²S Channel
— I²S Prescaling
Digital Audio Matrix
— Audio Channel Multiplexer between the different sources (IF, I²S, SCART) towards all
outputs (S/PDIF, LS, HP or SCART).
Autostandard management
— device configuration depending on the standard to be detected
— freeze the device when a standard is detected
— once a standard detected, check that there is no change in the detection status
— set the correct action depending on any change in the detection status (mono backup or
mute setup and new standard detection)
SCART
— Downmixing: LT / RT or L0 / R0 (see AC-3 specification)
— Soft Mute
4.2
Audio Processing
The following software is provided for main loudspeakers (L, R, C, LS, RS, SubW):
Downmix
Dolby
® Pro Logic II® Decoder (LT, RT →L, R, C, Ls, Rs, SubW) with Bass Management
ST WideSurround, ST OmniSurround, SRS® WOW™ or SRS® TruSurround XT® (certified
Virtual Dolby® Surround and Virtual Dolby® Digital)
ST Dynamic Bass and ST Bass Enhancer
Smart Volume Control (SVC)
5-band Equalizer or Bass-Treble
Loudness
Volume with independent channels (Smooth Volume Control)
Master Volume Control
Mute/soft-mute
Balance
Beeper
Pink Noise Generator (used to position the loudspeakers)
Programmable Delay for each loudspeaker
Adjustable Delay for “lip sync” up to 120 ms (to compensate for audio/video latency)


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