EVAL-ADAU1761Z Analog Devices Inc, EVAL-ADAU1761Z Datasheet - Page 67

• Manufacturer Part Number: EVAL-ADAU1761Z
• Description: Eval Board For ADAU1761
• Manufacturer: Analog Devices Inc
• Series: SigmaDSP®r

Specifications of EVAL-ADAU1761Z

• Main Purpose: Audio, CODEC
• Embedded: Yes, DSP
• Utilized Ic / Part: ADAU1761
• Primary Attributes: Stereo, 24-Bit, 8 ~ 96 kHz Sampling Rate, GUI Tool
• Secondary Attributes: I²C and GPIO Interfaces, 2 Differential and 1 Stereo Single-Ended Analog Inputs and Outputs
• Silicon Manufacturer: Analog Devices
• Core Architecture: SigmaDSP
• Silicon Core Number: ADAU1761
• Silicon Family Name: SigmaDSP
• Application Sub Type: Audio
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

R21: Right Input Digital Volume, 16,411 (0x401B)
Bit 7
Table 55. Right Input Digital Volume Register
Bits
[7:0]
R22: Playback Mixer Left (Mixer 3) Control 0, 16,412 (0x401C)
Bit 7
Reserved
Table 56. Playback Mixer Left (Mixer 3) Control 0 Register
Bits
6
5
[4:1]
0
Bit Name
RADVOL[7:0]
Bit Name
MX3RM
MX3LM
MX3AUXG[3:0]
MX3EN
Bit 6
Bit 6
MX3RM
Mixer input mute. Mutes the right DAC input to the left channel playback mixer (Mixer 3).
Mixer input mute. Mutes the left DAC input to the left channel playback mixer (Mixer 3).
Mixer input gain. Controls the left channel auxiliary input gain to the left channel playback mixer (Mixer 3).
Mixer 3 enable.
Description
Controls the digital volume attenuation for right channel inputs from either the right ADC or the right digital
microphone input. Each bit corresponds to a 0.375 dB step with slewing between settings. See Table 94 for a
complete list of the volume settings.
Setting
00000000
00000001
00000010
…
11111110
11111111
Description
0 = muted (default).
1 = unmuted.
0 = muted (default).
1 = unmuted.
Setting
0000
0001
0010
0011
0100
0101
0110
0111
1000
0 = disabled (default).
1 = enabled.
Bit 5
Bit 5
MX3LM
Bit 4
Bit 4
Volume Attenuation
0 dB (default)
−0.375 dB
−0.75 dB
…
−95.25 dB
−95.625 dB
Gain
Mute (default)
−15 dB
−12 dB
−9 dB
−6 dB
−3 dB
0 dB
3 dB
6 dB
Rev. C | Page 67 of 92
RADVOL[7:0]
Bit 3
Bit 3
MX3AUXG[3:0]
Bit 2
Bit 2
Bit 1
Bit 1
ADAU1761
Bit 0
Bit 0
MX3EN