CS42L56 查看數據表（PDF） - Cirrus Logic

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CS42L56

Ultralow Power, Stereo Codec with Class H Headphone Amp

Cirrus Logic 

6.3.2

Power Down MIC Bias

Configures the power state of the microphone bias output.

PDN_BIAS

0

1

MIC Bias Status

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CS42L56

6.3.3

Power Down ADC Charge Pump

Configures the power state of the ADC charge pump. For optimal ADC performance and power consump-

tion, set to 1b when VA > 2.1 V and set to 0b when VA < 2.1 V.

PDN_CHRG

0

1

ADC Charge Pump Status

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6.3.4

Power Down ADC x

Configures the power state of ADC channel x.

PDN_ADCx

0

1

ADC Status

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6.3.5

Power Down

Configures the power state of the entire CODEC.

PDN

0

1

CODEC Status

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6.4 Power Control 2 (Address 04h)

7

PDN_HPB1

6

PDN_HPB0

5

PDN_HPA1

4

PDN_HPA0

3

PDN_LINB1

2

PDN_LINB0

1

PDN_LINA1

6.4.1

Headphone Power Control

Configures how the HPDETECT pin, controls the power for the headphone amplifier.

PDN_HPx[1:0]

00

01

10

11

Headphone Status

Headphone channel is ON when the HPDETECT pin, is LO.

Headphone channel is OFF when the HPDETECT pin, is HI.

Headphone channel is ON when the HPDETECT pin, is HI.

Headphone channel is OFF when the HPDETECT pin, is LO.

Headphone channel is always ON.

Headphone channel is always OFF.

0

PDN_LINA0

58

DS851F2

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