ADAU1361BCPZ-R7 datasheet(63/78 Pages) AD

63 / 78 page

Data Sheet

ADAU1361

CONTROL REGISTERS

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Table 59. Playback Line Output Right Volume Control Register (Continued)

Bits

Bit Name

Description

ROUTM

Line output mute for right channel, ROUTN and ROUTP outputs (active low).

0 = mute.

1 = unmute (default).

ROMODE

Line output mode for right channel, ROUTN and ROUTP outputs. These pins can be configured for either line outputs or headphone

outputs. To drive earpiece speakers, set this bit to 1 (headphone output).

0 = line output (default).

1 = headphone output.

R33: Playback Mono Output Control, 16,423 (0x4027)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

MONOVOL[5:0]

MONOM

MOMODE

Table 60. Playback Mono Output Control Register

Bits

Bit Name

Description

[7:2]

MONOVOL[5:0]

Mono output volume control. Each 1-bit step corresponds to a 1 dB increase in volume. If MX7[1:0] in Register R28 is set for

common-mode output, volume control is disabled. See Table 74 for a complete list of the volume settings.

Setting

Volume

000000

−57 dB (default)

…

111001

0 dB

…

111111

6 dB

MONOM

Mono output mute (active low).

0 = mute.

1 = unmute (default).

MOMODE

Headphone mode enable. If MX7[1:0] in Register R28 is set for common-mode output for a capless headphone configuration, this bit

should be set to 1 (headphone output).

0 = line output (default).

1 = headphone output.

R34: Playback Pop/Click Suppression, 16,424 (0x4028)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Reserved

POPMODE

POPLESS

ASLEW[1:0]

Reserved

Table 61. Playback Pop/Click Suppression Register

Bits

Bit Name

Description

POPMODE

Pop suppression circuit power saving mode. The pop suppression circuits charge faster in normal operation; however, after they are

charged, they can be put into low power operation.

0 = normal (default).

1 = low power.

POPLESS

Pop suppression disable. The pop suppression circuits are enabled by default. They can be disabled to save power; however, disabling the

circuits increases the risk of pops and clicks.

0 = enabled (default).

1 = disabled.

[2:1]

ASLEW[1:0]

Analog volume slew rate for playback volume controls.

Setting

Slew Rate

21.25 ms (default)

42.5 ms

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