EVAL-ADAU1761Z Analog Devices Inc, EVAL-ADAU1761Z Datasheet - Page 72

• 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

ADAU1761
R28: Playback L/R Mixer Mono Output (Mixer 7) Control, 16,418 (0x4022)
Bit 7
Table 62. Playback L/R Mixer Mono Output (Mixer 7) Control Register
Bits
[2:1]
0
R29: Playback Headphone Left Volume Control, 16,419 (0x4023)
Bit 7
Table 63. Playback Headphone Left Volume Control Register
Bits
[7:2]
1
0
Bit Name
MX7[1:0]
MX7EN
Bit Name
LHPVOL[5:0]
LHPM
HPEN
Bit 6
Bit 6
Description
L/R mono playback mixer (Mixer 7). Mixes the left and right playback mixers (Mixer 3 and Mixer 4) with either a
0 dB or 6 dB gain boost. Additionally, this mixer can operate as a common-mode output, which is used as the
virtual ground in a capless headphone configuration.
Setting
00
01
10
11
Mixer 7 enable.
0 = disabled (default).
1 = enabled.
Description
Headphone volume control for left channel, LHP output. Each 1-bit step corresponds to a 1 dB increase in volume.
See Table 95 for a complete list of the volume settings.
Setting
000000
…
111001
…
111111
Headphone mute for left channel, LHP output (active low).
0 = mute.
1 = unmute (default).
Headphone volume control enable. Logical OR with the HPMODE bit in Register R30. If either the HPEN bit or
the HPMODE bit is set to 1, the headphone output is enabled.
0 = disabled (default).
1 = enabled.
Bit 5
Bit 5
Reserved
LHPVOL[5:0]
Bit 4
Bit 4
Gain Boost
Common-mode output (default)
0 dB output (−6 dB gain on each of the two inputs)
6 dB output (0 dB gain on each of the two inputs)
Reserved
Volume
−57 dB (default)
…
0 dB
…
6 dB
Rev. C | Page 72 of 92
Bit 3
Bit 3
Bit 2
Bit 2
MX7[1:0]
Bit 1
Bit 1
LHPM
Bit 0
MX7EN
Bit 0
HPEN