ADAU1361BCPZ-R7 datasheet(67/81 Pages) AD

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ADAU1361

Rev. C | Page 66 of 80

R28: Playback L/R Mixer Mono Output (Mixer 7) Control, 16,418 (0x4022)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Reserved

MX7[1:0]

MX7EN

Table 55. Playback L/R Mixer Mono Output (Mixer 7) Control Register

Bits

Bit Name

Description

[2:1]

MX7[1:0]

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

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

MX7EN

Mixer 7 enable.

0 = disabled (default).

1 = enabled.

R29: Playback Headphone Left Volume Control, 16,419 (0x4023)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

LHPVOL[5:0]

LHPM

HPEN

Table 56. Playback Headphone Left Volume Control Register

Bits

Bit Name

Description

[7:2]

LHPVOL[5:0]

Headphone volume control for left channel, LHP output. Each 1-bit step corresponds to a 1 dB increase in volume.

See Table 74 for a complete list of the volume settings.

Setting

Volume

000000

−57 dB (default)

…

111001

0 dB

…

111111

6 dB

LHPM

Headphone mute for left channel, LHP output (active low).

0 = mute.

1 = unmute (default).

HPEN

Headphone output enable.

0 = disabled (default).

1 = enabled.

ADAU1361BCPZ-R7 数据表(PDF) 67 Page - Analog Devices

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