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Part Name
Description
CS6422-ISZ View Datasheet(PDF) - Cirrus Logic
Part Name
Description
Manufacturer
CS6422-ISZ
Enhanced Full-Duplex Speakerphone IC
Cirrus Logic
CS6422-ISZ Datasheet PDF : 48 Pages
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CS6422
3.4 Register 1
b15 b14 b13 b12 b11 b10 b9
THDet
Taps
TVol
00
10
1010
2
A
b8 b7 b6 b5
b4
b3 b2 b1 b0
RSD NCC AuNECD 0 0 1 0
0
00
0
0
2
Bits
15-14
13-12
11-8
7
6-5
4
Name
THDet
Taps
Function
Tx Half-duplex Detection
threshold
AEC/NEC Tap allocation
TVol
Tx Volume control
RSD
NCC
Rx Suppression Disable
NEC Coefficient Control
AuNECD Auto re-engage NEC Disable
Word
00*
01
10
11
00
01
10*
11
0000
0001
---
0100
---
1010*
1011
---
1101
1110
1111
0*
1
00*
01
10
11
0*
1
* Denotes reset value
Table 4. Register 1 Bit Definitions
Operation
6 dB
9 dB
12 dB
reserved
444/64 (55.5 ms/8 ms)
380/128 (47.5 ms/16 ms)
316/192 (39.5 ms/24 ms)
252/256 (31.5 ms/32 ms)
+30 dB
+27 dB
---
+18 dB
---
+0 dB
-3 dB
---
-9 dB
-12 dB
mute
enable Rx suppression
disable Rx suppression
Normal
Clear
Freeze
reserved
enable Auto NEC
disable Auto NEC
DS295F1
17
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