CS42L51_07 Datasheet, PDF (68/88 Pages) Cirrus Logic – Low Power, Stereo CODEC with Headphone Amp

Cushion Threshold (CUSH[2:0])
Default: 000
CS42L51
CUSH[2:0] Threshold
Setting
(dB)
000
0
001
-3
010
-6
011
-9
101
-12
101
-18
110
-24
111
-30
Function:
Sets a cushion level below full scale. This setting is usually set slightly below the maximum (MAX[2:0])
threshold. The Limiter uses this cushion as a hysteresis point for the input signal as it maintains the signal
below the maximum as well as below the cushion setting. This provides a more natural sound as the limiter
attacks and releases.
Limiter Soft Ramp Disable (LIM_SRDIS)
Default: 0
0 - Off
1 - On
Function:
Overrides the DAC_SZC setting. When this bit is set, the Limiter attack and release rate will not be dictated
by the soft ramp setting. Note: This bit is ignored when the zero-cross function is enabled (i.e. when
DAC_SZC[1:0] = ‘01’b or ‘11’b.)
Limiter Zero Cross Disable (LIM_ZCDIS)
Default: 0
0 - Off
1 - On
Function:
Overrides the DAC_SZC setting. When this bit is set, the Limiter attack and release rate will not be dictated
by the zero-cross setting.
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