STA310 STMicroelectronics, STA310 Datasheet - Page 60

• Manufacturer Part Number: STA310
• Description: IC AUDIO DECODER 6+2CH 80-TQFP
• Manufacturer: STMicroelectronics
• Type: Audio Decoderr

Specifications of STA310

• Applications: HDTV, Players, Receivers, Set-Top Boxes
• Voltage - Supply, Analog: 2.5V
• Voltage - Supply, Digital: 2.5V
• Mounting Type: Surface Mount
• Package / Case: 80-TQFP, 80-VQFP
• Audio Codec Type: MP3 Decoder
• No. Of Dacs: 3
• No. Of Input Channels: 2
• No. Of Output Channels: 6
• Adc / Dac Resolution: 32bit
• Sampling Rate: 192kHz
• Interface Type: I2C, Serial, Parallel
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8856; STA310

STA310
When it has detected (SYNC_LOCK+1) sync words,
it sends the data to the decoder.
9.14 Post decoding and pro logic registers
PDEC1
Post decoder register
Address: 0x62
Type: R/W
Software Reset: NC
Hardware Reset: UND
Description:
This register controls the post decoder operations.
PL_AB
Pro Logic auto balance
Address : 0x64
Type: R/W
Software Reset: NC
Hardware Reset: UND
60/90
VMAX
MPEG_DR When high enable MPEG dynamic range.
7
7
Bitfield
DEM
DCF
DB
PL
6
6
5
When high Pro Logic decoding is forced,
when low the ProLogic decoder is
automatically enabled when the stream
contains the info that it is ProLogic
encoded
When high the "double stereo" procedure
is enabled. Double stereo is a copy of
Left/Right channels on to Left/Right
surround channels in order to have a
pseudo 5 -channel decoder effect.
When set the DC filter is activated.. When
reset, it is disabled.
When set the de-emphasis filter is
activated.. When reset, it is disabled.
DEM DCF DB PVIRT MPEG_DR PL
5
4
4
3
3
Description
2
2
PL_WS
1
1
PL_AB
0
0
Description:
PL_DWNX
Pro Logic Decoder Downmix
Address : 0x65
Type: R/W
Software Reset: NC
Hardware Reset: UND
Description:
Prologic decoder support only 4 sampling frequen-
cies: 48KHz, 44.1KHz, 32KHz, 22.05KHz.
If we active prologic with sampling frequency differ-
ent from those frequencies, the decoder will be auto-
matically disable the prologic call.
OCFG
Output Configuration
Address: 0x66
LFE_BYP BOOST
PL_DWNX
7
LFE_BYP
Bitfield
PL_WS
PL_AB
Bitfield
[2:0]
7
6
5
When high, select the auto-balance
function (used to track out gin
mismatches between Lt and Rt).When
low, disable the autobalance function
When high, enable Wide Surround mode.
The wide surround option is provided for
users who plan to do further post-
processing of the Pro Logic outputs, and
want to fold the lowpass filtering of the
surround channel into their downstream
processing Lowpass filtering and B-type
shelf filtering are both disabled. When
low, disable ide surround mode.
6
0,1,2: Pro Logic disabled
3: 3/0 (L, R, C) three stereo
4: 2/1 (L, R, Ls) phantom
5: 3/1 (L, C, R, Ls)
6: 2/2 (L, R, Ls, Rs) phantom
7: 3/2 (L, C, R, S, S)
0: LFE channel is clear
1: LFE channel is bypassed
4
5
LFE_BYP
Description
3
4
Description
3
PL_DWNX[2:0]
2
2
OCFG[2:0]
1
1
0
0