ADAU1772BCPZ-R7 datasheet(79/117 Pages) AD

79 / 117 page

ADAU1772

Data Sheet

Rev. C | Page 78 of 116

ADC0 VOLUME CONTROL REGISTER

Address: 0x001F, Reset: 0x00, Name: ADC0_VOLUME

When SINC_0_EN is set, the volume starts to ramp from −95.625 dB to the value in this register. The volume ramp time is (number of

steps) × 16/fS, where there are 256 steps between 0 dB and −95.625 dB. For example, with fS = 192 kHz, the volume ramps from −95.625 dB

to 0 dB in 21 ms.

Table 60. Bit Descriptions for ADC0_VOLUME

Bits

Bit Name

Settings

Description

Reset

Access

[7:0]

ADC_0_VOL

ADC0 volume setting.

0x00

00000000

0 dB

00000001

−0.375 dB

11111111

−95.625 dB

ADC1 VOLUME CONTROL REGISTER

Address: 0x0020, Reset: 0x00, Name: ADC1_VOLUME

When SINC_1_EN is set, the volume starts to ramp from −95.625 dB to the value in this register. The volume ramp time is (number of

steps) × 16/fS, where there are 256 steps between 0 dB and −95.625 dB. For example, with fS = 192 kHz, the volume ramps from −95.625 dB

to 0 dB in 21 ms.

Table 61. Bit Descriptions for ADC1_VOLUME

Bits

Bit Name

Settings

Description

Reset

Access

[7:0]

ADC_1_VOL

ADC1 volume setting.

0x00

00000000

0 dB

00000001

−0.375 dB

11111111

−95.625 dB

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