SSM2602CPZ-R21 datasheet(21/28 Pages) AD

21 / 28 page

Preliminary Technical Data

SSM2602

Rev. PrB | Page 21 of 28

ANALOG AUDIO PATH, ADDRESS 0x04

Table 19. Analog Audio Path Register Bit Map

MICBOOST2

SIDETONE_ATT [1:0]

SIDETONE_EN

DACSEL

BYPASS

INSEL

MUTEMIC

MICBOOST

Table 20. 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)

1 = sidetone enable

DACSEL

DAC select

0 = do not select DAC (default)

1 = select DAC

BYPASS

Line input bypass to line output

0 = bypass disable

1 = bypass enable (default)

INSEL

Microphone/line level boost

0 = microphone input select to ADC (default)

1 = line input select to ADC

MUTEMIC

Microphone mute control

0 = mute disable

1 = mute enable (default)

MICBOOST

Primary microphone amplifier gain booster control

0 = 0 dB (default)

1 = 20 dB

DIGITAL AUDIO PATH CONTROL, ADDRESS 0x05

Table 21. Digital Audio Path Control Register Bit Map

HPOR

DACMU

DEEMPH [1:0]

ADCHPD

Table 22. Descriptions of Digital Audio Path Control Register Bits

Bit Name

Description

Settings

HPOR

Store dc offset when high-pass filter is disabled

0 = store offset disable (default)

1 = store offset enable

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

ADCHPD

ADC high-pass filter control

0 = ADC high-pass filter disable (default)

1 = ADC high-pass filter enable

SSM2602CPZ-R21 数据表(PDF) 21 Page - Analog Devices

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