Cirrus Logic CS42L52 - Manual (Page 55)

DS680F2 55
CS42L52
3/1/13
6.15 MICx Amp Control:MIC A (Address 10h) and MIC B (Address 11h)
6.15.1 MIC x Select
Selects one of two single-ended MIC inputs on channel x.
6.15.2 MICx Configuration
Configures the input topology for MICx.
6.15.3 MICx Gain
Sets the gain of the microphone pre-amplifier.
6.16 PGAx Vol. and ALCx Transition Ctl.:
ALC, PGA A (Address 12h) and ALC, PGA B (Address 13h)
6.16.1 ALCx Soft Ramp Disable
Configures an override of the analog soft ramp setting.
7 6 5 4 3 2 1 0
Reserved MICxSEL MICxCFG MICxGAIN4 MICxGAIN3 MICxGAIN2 MICxGAIN1 MICxGAIN0
MICxSEL MIC x Selection
0 MIC 1x
1 MIC 2x
Application: “MIC Inputs” on page 26
MICxCFG MIC Input Topology
0 Single-Ended
1 Differential
Application: “MIC Inputs” on page 26
MICxGAIN[4:0] Gain
1 1111 32 dB
... ...
1 0000 32 dB
0 1111 30.5 dB
0 1110 30 dB
... ...
0 0000 16 dB
Step Size: 1 dB (unless otherwise noted)
Application: “MIC Inputs” on page 26
7 6 5 4 3 2 1 0
ALCxSRDIS ALCxZCDIS PGAxVOL5 PGAxVOL4 PGAxVOL3 PGAxVOL2 PGAxVOL1 PGAxVOL0
ALCxSRDIS ALC Soft Ramp Disable
0 OFF; ALC Attack Rate is dictated by the ANLGSFT ( “Ch. x Analog Soft Ramp” on page 49 ) setting
1 ON; ALC volume changes take effect in one step, regardless of the ANLGSFT setting.
Application: “Automatic Level Control (ALC)” on page 26