Datasheet

Data Sheet ADAU1772
Rev. B | Page 77 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/f
S
, where there are 256 steps between 0 dB and −95.625 dB. For example, with f
S
= 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 RW
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/f
S
, where there are 256 steps between 0 dB and −95.625 dB. For example, with f
S
= 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 RW
00000000 0 dB
00000001 −0.375 dB
11111111 −95.625 dB