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STA310 Datasheet(PDF) 25 Page - STMicroelectronics

Part # STA310
Description  62-CH. MULTISTANDARD AUDIO DECODER
PDF  90 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA310 Datasheet(HTML) 25 Page - STMicroelectronics

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STA310
4.10 What Can Be Processed at the Same Time
Same Time 1
Same Time 2
5
PCM OUTPUT CONFIGURATIONS
5.1 Output configurations
The figure below shows the different configurations supported at PCM output stage. They are selected by the
OCFG register contents.
- In configuration 1, 3 and 4, the main channels are attenuated by 18.5dB, and the LFE by 8.5dB before
summing.
After digital/analog conversion, the subwoofer preamplifier has to compensate for the different gains
of the main channels and subwoofer.
- In configuration 2, the main channels are attenuated by 16dB and the LFE by 6dB before processing.
- In configuration 0, outputs are only scaled and rounded (see next section).
The same configurations will be used in case of a decoded Pro Logic program with the exception that the sur-
round channels will not be added to the bass redirection (the surround channels of a Pro Logic program are
band limited and bass is considered as leakage).
Decoder
MPEG1
MP3
AC3
MPEG2
LPCM Video
PCM
MLP
LPCM Audio
PinkNoise
Beep Tone
Post
Pcrocessing
Bass
Management
Commands
Mute
Skipframe
Pause
Pause block
Volume Control
S/PdifOutput
PCM (Left
,Right
PCM (VCRs)
Encoded
Mute
Off
Post
Pcrocessing
Prologic
Post
Pcrocessing
Karaoke
Channel Delay
Post
Pcrocessing
Karaoke
Channel Delay
Post
Pcrocessing
Karaoke
Channel Delay



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