PCM1608

17

SBAS164A

B15

B14

B13

B12

B11

B10

B9

B8

B7

B6

B5

B4

B3

B2

B1

B0

Register 7

R/W

IDX6

IDX5

IDX4

IDX3

IDX2

IDX1

IDX0

RSV

RSV

MUT6

MUT5

MUT4

MUT3

MUT2

MUT1

R/W

Read/Write Mode Select

When R/W = 0, a Write operation is performed.

When R/W = 1, a Read operation is performed.

Default Value: 0

MUTx

Soft Mute Control

These bits are Read/Write.

Default Value: 0

MUTx = 0

Mute Disabled (default)

MUTx = 1

Mute Enabled

The mute bits, MUT1 through MUT6, are used to enable or disable the Soft Mute function for the

attenuators. When Mute is disabled (MUTx = 0), the attenuator and DAC operate normally. When Mute

is enabled by setting MUTx = 1, the digital attenuator for the corresponding output will be decreased from

the current setting to the infinite attenuation setting one attenuator step (0.5dB) at a time. This provides a

quiet, pop-free muting of the DAC output. Upon returning from Soft Mute, by setting

MUTx = 0, the attenuator will be increased one step at a time to the previously programmed attenuator

level.

B15

B14

B13

B12

B11

B10

B9

B8

B7

B6

B5

B4

B3

B2

B1

B0

REGISTER 8

R/W

IDX6

IDX5

IDX4

IDX3

IDX2

IDX1

IDX0

RSV

RSV

DAC6

DAC5

DAC4

DAC3

DAC2

DAC1

R/W

Read/Write Mode Select

When R/W = 0, a write operation is performed.

When R/W = 1, a read operation is performed.

Default Value: 0

DACx

DAC Operation Control

These bits are Read/Write.

Default Value: 0

DACx = 0

DAC Operation Enabled (default)

DACx = 1

DAC Operation Disabled

DACx = 0, the output amplifier input is connected to the DAC output. When DACx = 1, the output amplifier