CS42L52-DNZR(2006) 데이터 시트보기 (PDF) - Cirrus Logic

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CS42L52-DNZR
(Rev.:2006)

Low Power, Stereo CODEC w/Headphone & Speaker Amps

Cirrus Logic 

6.15.2 MICx Configuration

Configures the input topology for MICx.

MICxCFG

0

1

Application:

MIC Input Topology

Single-Ended

Differential

“MIC Inputs” on page 27

CS42L52

6.15.3 MICx Gain

Sets the gain of the microphone pre-amplifier.

MICxGAIN[4:0]

11111

...

10000

...

00000

Step Size:

Application:

Gain

32 dB

...

32 dB

...

16 dB

1 dB

“MIC Inputs” on page 27

6.16 PGAx Vol. & ALCx Transition Ctl.:

ALC, PGA A (Address 12h) & ALC, PGA B (Address 13h)

7

6

5

4

3

2

ALCxSRDIS ALCxZCDIS PGAxVOL5 PGAxVOL4 PGAxVOL3 PGAxVOL2

6.16.1 ALCx Soft Ramp Disable

1

PGAxVOL1

0

PGAxVOL0

Configures an override of the analog soft ramp setting.

ALCxSRDIS

0

1

Application:

ALC Soft Ramp Disable

OFF; ALC Attack Rate is dictated by the ANLGSFT (“Ch. x Analog Soft Ramp” on page 49) setting

ON; ALC volume changes take effect in one step, regardless of the ANLGSFT setting.

“Automatic Level Control (ALC)” on page 27

6.16.2 ALCx Zero Cross Disable

Configures an override of the analog zero cross setting.

ALCxZCDIS

0

1

Application:

ALC Zero Cross Disable

OFF; ALC Attack Rate is dictated by the ANLGZC (“Ch. x Analog Zero Cross” on page 49) setting

ON; ALC volume changes take effect at any time, regardless of the ANLGZC setting.

“Automatic Level Control (ALC)” on page 27

DS680A1

55

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