SSM2602CPZ-R2 datasheet(24/32 Pages) AD

24 / 32 page

SSM2602

Rev. 0 | Page 24 of 32

ANALOG AUDIO PATH, ADDRESS 0x04

Table 20. Analog Audio Path Register Bit Map

MICBOOST2

SIDETONE_ATT [1:0]

SIDETONE_EN

DACSEL

BYPASS

INSEL

MUTEMIC

MICBOOST

Table 21. Descriptions of Analog Audio Path Register Bits

Bit Name

Description

Settings

MICBOOST2

Additional microphone amplifier gain booster control.

0 = 0 dB (default)

1 = 20 dB

SIDETONE_ATT [1:0]

Microphone sidetone gain control.

00 = −6 dB (default)

01 = −9 dB

10 = −12 dB

11 = −15 dB

SIDETONE_EN

0 = sidetone disable (default)

Sidetone enable. Allow attenuated microphone signal to

be mixed at device output terminal.

1 = sidetone enable

DACSEL

0 = do not select DAC (default)

DAC select. Allow DAC output to be mixed at device

output terminal.

1 = select DAC

BYPASS

0 = bypass disable

Bypass select. Allow line input signal to be mixed at

device output terminal.

1 = bypass enable (default)

INSEL

Line input or microphone input select to ADC.

0 = line input select to ADC (default)

1 = microphone input select to ADC

MUTEMIC

Microphone mute control to ADC.

0 = mute on data path to ADC disable

1 = mute on data path to ADC enable (default)

MICBOOST

Primary microphone amplifier gain booster control.

0 = 0 dB (default)

1 = 20 dB

DIGITAL AUDIO PATH, ADDRESS 0x05

Table 22. Digital Audio Path Register Bit Map

HPOR

DACMU

DEEMPH [1:0]

ADCHPF

Table 23. Descriptions of Digital Audio Path Register Bits

Bit Name

Description

Settings

HPOR

Store dc offset when high-pass filter is disabled

0 = clear offset (default)

1 = store offset

DACMU

DAC digital mute

0 = no mute (signal active)

1 = mute (default)

DEEMPH [1:0]

De-emphasis control

00 = no de-emphasis (default)

01 = 32 kHz sampling rate

10 = 44.1 kHz sampling rate

11 = 48 kHz sampling rate

ADCHPF

ADC high-pass filter control

0 = ADC high-pass filter enable (default)

1 = ADC high-pass filter disable

SSM2602CPZ-R2 数据表(PDF) 24 Page - Analog Devices

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