ADAU1361BCPZ-R7 datasheet(65/78 Pages) AD

65 / 78 page

Data Sheet

ADAU1361

CONTROL REGISTERS

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Rev. E | 65 of 78

Table 63. DAC Control 0 Register (Continued)

Bits

Bit Name

Description

Both channels in mono mode

DACPOL

Invert input polarity of the DACs.

0 = normal (default).

1 = inverted.

DEMPH

DAC de-emphasis filter enable. The de-emphasis filter is designed for use with a sampling rate of 44.1 kHz only.

0 = disabled (default).

1 = enabled.

[1:0]

DACEN[1:0]

DAC enable.

Setting

DACs Enabled

Both off (default)

Left on

Right on

Both on

R37: DAC Control 1, 16,427 (0x402B)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

LDAVOL[7:0]

Table 64. DAC Control 1 Register

Bits

Bit Name

Description

[7:0]

LDAVOL[7:0]

Controls the digital volume attenuation for left channel inputs from the left DAC. Each bit corresponds to a 0.375 dB step with slewing

between settings. See Table 73 for a complete list of the volume settings.

Setting

Volume Attenuation

00000000

0 dB (default)

00000001

−0.375 dB

00000010

−0.75 dB

…

11111110

−95.25 dB

11111111

−95.625 dB

R38: DAC Control 2, 16,428 (0x402C)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

RDAVOL[7:0]

Table 65. DAC Control 2 Register

Bits

Bit Name

Description

[7:0]

RDAVOL[7:0]

Controls the digital volume attenuation for right channel inputs from the right DAC. Each bit corresponds to a 0.375 dB step with slewing

between settings. See Table 73 for a complete list of the volume settings.

Setting

Volume Attenuation

00000000

0 dB (default)

00000001

−0.375 dB

00000010

−0.75 dB

…

11111110

−95.25 dB

11111111

−95.625 dB

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