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STA321MPL1 датащи(PDF) 40 Page - STMicroelectronics

номер детали STA321MPL1
подробное описание детали  Scalable digital microphone processor
PDF  80 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA321MPL1 датащи(HTML) 40 Page - STMicroelectronics

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Registers
STA321MPL1
40/80
DocID029389 Rev 1
5.2.36
EGEQ - graphic EQ 8-kHz band (0x27)
5.2.37
Biquad internal channel loop-through (0x28)
Each internal processing channel can receive two possible inputs at the input to the biquad
block. The input can come either from the output of that channel’s MIX#1 engine or from the
output of the bass/treble (biquad #10) of the previous channel. In this scenario, channel 1
receives channel 8. This enables the use of more than 10 biquads on any given channel at
the loss of the number of separate internal processing channels.
D7
D6
D5
D4
D3
D2
D1
D0
EGEQ4
EGEQ3
EGEQ2
EGEQ1
EGEQ0
01
11
1
xGEQ[4:0]
Boost / cut
11111
16
11110
15
11101
14
……
10000
1
01111
0
01110
-1
……
00001
-14
00000
-15
D7
D6
D5
D4
D3
D2
D1
D0
C8BLP
C7BLP
C6BLP
C5BLP
C4BLP
C3BLP
C2BLP
C1BLP
00
000
00
0
Bit
RW
RST
Name
Description
7:0
RW
0
CnBLP
For n = 1 to 8:
0: input from channel n MIX#1 engine output - normal
operation
1: input from channel (n - 1) biquad #10 output - loop
operation.



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