BU26156RFS Datasheet, PDF (68/95 Pages) Rohm – Monoraul MIC Input with ALC

BU26156RFS
Datasheet
Soft Clip Enable Register
Soft Clip Threshold H Register
Soft Clip Threshold M Register
Soft Clip Threshold L Register
Soft Clip Gain Register
MAPCON
INDEX
b07
b06
b05
b04
b03
b02
b01
b00
R
W
(Initial)
0x0
0xb0 0xb1
-
-
-
-
-
-
-
SCEN
-
-
-
-
-
-
-
0
0x0
0xb2 0xb3
-
SCTHRH
-
0
0
0
0
0
0
0
0x0
0xb4 0xb5
SCTHRM
0
0
0
0
0
0
0
0
0x0
0xb6 0xb7
SCTHRL
0
0
0
0
0
0
0
0
0x0
0xb8 0xb9
-
-
-
-
-
SCGAIN
-
-
-
-
-
0
0
1
This register is setting of the "SoftClip" block.
SCEN
setting
0
1
SoftClip Function OFF
SoftClip Function ON
Description
SCTHRH
SCTHRM
SCTHRL
This register sets a soft clip threshold level.
When PCM signal with more than of this bit is input, the LSI clips it according to a value of SCGAIN and works.
The value of threshold level is 23bit(SCTHRM[6:0], SCTHRM[7:0], SCTHRL[7:0])
Please do not change the value of this bit during SoftClip function movement.
SCGAIN[2:0]
This register is setting the gain at SoftClip. This register setting must not be changed during SoftClip function is active.
setting
Description
0x0
2 time
0x1
1 time(default)
0x2
1/2 time
0x3
1/4 time
0x4
1/8 time
0x5
1/16 time
0x6
1/32 time
0x7
1/64 time
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TSZ22111・15・001
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TSZ02201-0V1V0E502570-1-2
Jul.1.2014 Rev.001