adau1461 Analog Devices, Inc., adau1461 Datasheet - Page 69

• Manufacturer Part Number: adau1461
• Description: Sigmadsp Stereo, Low Power, 96 Khz, 24-bit Audio Codec With Integrated Pll Adau1461
• Manufacturer: Analog Devices, Inc.

R29: Playback Headphone Left Volume Control, 16,419 (0x4023)
Bit 7
Table 61. Playback Headphone Left Volume Control Register
Bits
[7:2]
1
0
R30: Playback Headphone Right Volume Control, 16,420 (0x4024)
Bit 7
Table 62. Playback Headphone Right Volume Control Register
Bits
[7:2]
1
0
Bit Name
LHPVOL[5:0]
LHPM
HPEN
Bit Name
RHPVOL[5:0]
RHPM
HPMODE
Bit 6
Bit 6
Description
Headphone volume control for left channel, LHP output. Each 1-bit step corresponds to a 1 dB increase in volume.
See Table 93 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.
Description
Headphone volume control for right channel, RHP output. Each 1-bit step corresponds to a 1 dB increase in
volume. See Table 93 for a complete list of the volume settings.
Setting
000000
…
111001
…
111111
Headphone mute for right channel, RHP output (active low).
0 = mute.
1 = unmute (default).
RHP and LHP output mode. These pins can be configured for either line outputs or headphone outputs. Logical
OR with the HPEN bit in Register R29. If either the HPMODE bit or the HPEN bit is set to 1, the headphone output
is enabled.
0 = enable line output (default).
1 = enable headphone output.
Bit 5
Bit 5
LHPVOL[5:0]
RHPVOL[5:0]
Bit 4
Bit 4
Volume
−57 dB (default)
…
0 dB
…
6 dB
Volume
−57 dB (default)
…
0 dB
…
6 dB
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Bit 3
Bit 3
Bit 2
Bit 2
Bit 1
LHPM
Bit 1
RHPM
ADAU1461
Bit 0
HPEN
Bit 0
HPMODE