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STA382BWSTR 数据表(PDF) 128 Page - STMicroelectronics

部件名 STA382BWSTR
功能描述  Sound Terminal 2.1-channel high-efficiency digital audio system
PDF  172 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STA382BWSTR 数据表(HTML) 128 Page - STMicroelectronics

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Register description: Sound Terminal compatibility
STA382BWS
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Doc ID 022784 Rev 1
7.9.2
EQ bypass
EQ control can be bypassed on a per-channel basis for channels 1 and 2. If EQ control is
bypassed on a given channel, the prescale and all filters (biquads, bass, treble in any
combination) are bypassed for that channel.
7.9.3
Volume bypass
Each channel contains an individual channel volume bypass. If a particular channel has
volume bypassed via the CxVBP = 1 register, then only the channel volume setting for that
particular channel affects the volume setting, the master volume setting will not affect that
channel.
Table 143.
Volume bypass register
7.9.4
Binary output enable registers
Each individual channel output can be set to output a binary PWM stream. In this mode
output A of a channel is considered the positive output and output B is the negative inverse.
7.9.5
Limiter select
Limiter selection can be made on a per-channel basis according to the channel limiter select
bits. CxLS bits are considered in case of dual-band DRC and EQDRC usage (7.16.1).
Table 142.
EQ bypass
CxEQBP
Mode
0
Perform EQ on channel x - normal operation
1
Bypass EQ on channel x
CxVBP
Mode
0
Normal volume operations
1
Volume is bypassed
Table 144.
Binary output enable registers
CxBO
Mode
0
FFX 3-state output - normal operation
1
Binary output
Table 145.
Channel limiter mapping as a function of CxLS bits
CxLS[1:0]
Channel limiter mapping
00
Channel has limiting disabled
01
Channel is mapped to limiter #1
10
Channel is mapped to limiter #2
Obsolete
Product(s)
- Obsolete
Product(s)



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