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STA321MPL1TR Datenblatt(PDF) 41 Page - STMicroelectronics

Teilenummer STA321MPL1TR
Bauteilbeschribung  Scalable digital microphone processor
PDF  80 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
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STA321MPL1TR Datenblatt(HTML) 41 Page - STMicroelectronics

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STA321MPL1
Registers
80
5.2.38
Mix internal channel loop-through (0x29)
Each internal processing channel can receive two possible sets of inputs at the input to the
Mix#1 block. The inputs can come from the outputs of the interpolation block as normally
occurs (CnMXLP = 0) or they can come from the outputs of the Mix#2 block. This enables
the use of additional filtering after the second mix block at the expense of losing this
processing capability on the channel.
5.2.39
EQ bypass (0x2A)
EQ control can be bypassed on a per-channel basis. If EQ control is bypassed on a given
channel, the prescale and all 10 filters (high-pass, biquads, de-emphasis, bass
management cross-over, bass, treble in any combination) are bypassed for that channel.
5.2.40
Tone control bypass (0x2B)
Tone control (bass/treble) can be bypassed on a per-channel basis. If tone control is
bypassed on a given channel, the two filters that tone control utilizes are made available as
user-programmable biquads #9 and #10.
D7
D6
D5
D4
D3
D2
D1
D0
C8MXLP
C7MXLP
C6MXLP
C5MXLP
C4MXLP
C3MXLP
C2MXLP
C1MXLP
00
000
00
0
Bit
RW
RST
Name
Description
7:0
RW
0
CnMXLP
For n = 1 to 8:
0: inputs to channel n MIX#1 engine from interpolation
outputs - normal operation
1: inputs to channel n MIX#1 engine from MIX#2 engine
outputs - loop operation
D7
D6
D5
D4
D3
D2
D1
D0
C8EQBP
C7EQBP
C6EQBP
C5EQBP
C4EQCBP
C3EQBP
C2EQBP
C1EQBP
00
000
00
0
Bit
RW
RST
Name
Description
7:0
RW
0
CnEQBP
For n = 1 to 8:
0: perform EQ on channel n - normal operation
1: bypass EQ on channel n
D7
D6
D5
D4
D3
D2
D1
D0
C8TCB
C7TCB
C6TCB
C5TCB
C4TCB
C3TCB
C2TCB
C1TCB
00
000
00
0



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