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STA311B 데이터시트(PDF) 41 Page - STMicroelectronics

부품명 STA311B
상세설명  Multichannel digital audio processor with FFXTM
PDF  102 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA311B 데이터시트(HTML) 41 Page - STMicroelectronics

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STA311B
Registers
102
FFX is operating in a device with an active AM tuner. This mode eliminates the noise-
shaper.
Channels 7 and 8 can be configured to be processed and output in such a manner that
headphones can be driven using an appropriate output device. This signal is a differential
3-wire drive called FFX headphone.
8.2.8
Configuration register H (0x07)
The ZCE bit enables zero-crossing volume adjustments. When volume is adjusted on digital
zero-crossings, no clicks will be audible.
Bit
RW
RST
Name
Description
5RW
0
HPE
FFX headphone enable:
0: channels 7 and 8 normal FFX operation
1: channels 7 and 8 headphone operation
Bit
RW
RST
Name
Description
6
RW
0
DCCV
Distortion compensation variable enable:
0: uses the preset DC coefficient
1: uses the DCC coefficient
Bit
RW
RST
Name
Description
7RW
0
MPCV
Max power correction variable:
0: uses the standard MPC coefficient
1: uses the MPCC bits for the MPC coefficient
D7
D6
D5
D4
D3
D2
D1
D0
ECLE
LDTE
BCLE
IDE
ZDE
SVE
ZCE
NSBW
01
111
11
0
Bit
RW
RST
Name
Description
0
RW
0
NSBW
Noise-shaper bandwidth selection:
1: 3rd order NS
0: 4th order NS
Bit
RW
RST
Name
Description
1RW
1
ZCE
Zero-crossing volume enable:
1: volume adjustments will only occur at digital zero-
crossings
0: volume adjustments will occur immediately



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