PCM1789 datasheet(26/39 Pages) TI

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PCM1789

SBAS451 – OCTOBER 2008.............................................................................................................................................................................................. www.ti.com

DEC

HEX

MRST

SRST

AMUTE3

AMUTE2

AMUTE1

AMUTE0

SRDA1

SRDA0

MRST

Mode control register reset

This bit sets the mode control register reset to the default value. Pop noise may be generated.

Returning the MRST bit to '1' is unnecessary because it is automatically set to '1' after the mode

control register is reset.

Default value = 1.

MRST

Mode control register reset

Set default value

Normal operation (default)

SRST

System reset

This bit controls the system reset, which includes the resynchronization between the system

clock and sampling clock, and DAC operation restart. The mode control register is not reset and

the PCM1789 does not go into a power-down state. Returning the SRST bit to '1' is unnecessary;

it is automatically set to '1' after triggering a system reset.

Default value = 1.

SRST

System reset

Resynchronization

Normal operation (default)

AMUTE[3:0] Analog mute function control

These bits control the enabling/disabling of each source event that triggers the analog mute

control circuit.

Default value = 0000.

AMUTE

Analog mute function control

xxx0

Disable analog mute control by SCKI halt

xxx1

Enable analog mute control by SCKI halt

xx0x

Disable analog mute control by asynchronous detect

xx1x

Enable analog mute control by asynchronous detect

x0xx

Disable analog mute control by ZERO1 and ZERO2 detect

x1xx

Enable analog mute control by ZERO1 and ZERO2 detect

0xxx

Disable analog mute control by DAC disable command

1xxx

Enable analog mute control by DAC disable command

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