CS42L51 View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CS42L51

Low Power, Stereo CODEC with Headphone Amp

Cirrus Logic 

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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DS679F1

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