ADAU1961WBCPZ-R7 datasheet(66/77 Pages) AD

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Data Sheet

ADAU1961

Rev. A | Page 65 of 76

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 58. Playback Mono Output Control Register

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 59. 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

85 ms

Off

R35: Playback Power Management, 16,425 (0x4029)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Reserved

PREN

PLEN

Table 60. Playback Power Management Register

Bits

Bit Name

Description

PREN

Playback right channel enable.

0 = disabled (default).

1 = enabled.

PLEN

Playback left channel enable.

0 = disabled (default).

1 = enabled.

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 72 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.

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