PCM1789 datasheet(28/39 Pages) TI

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PCM1789

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

DEC

HEX

RSV

OPEDA

RSV

FLT

RSV

Reserved

Reserved; do not use.

OPEDA

Operation control

This bit controls the DAC operation mode. In operation disable mode, the DAC output is cut off

from DIN and the internal DAC data are reset. If PSMDA = 1, the DAC output is forced into

VCOM. If PSMDA = 0, the DAC output is forced into AGND and the DAC goes into a

power-down state. For normal operating mode, this bit must be '0'. The serial mode control is

effective during operation disable mode.

Default value: 0.

OPEDA

Operation control

Normal operation

Operation disable with or without power save

FLT

Digital filter roll-off control

This bit allows users to select the digital filter roll-off that is best suited to their applications. Sharp

and slow filter roll-off selections are available. The filter responses for these selections are shown

in the Typical Characteristics sections of this data sheet.

Default value: 0.

FLT

Digital filter roll-off control

Sharp roll-off

Slow roll-off

DEC

HEX

RSV

REVDA2

REVDA1

RSV

Reserved

Reserved; do not use.

REVDA[2:1] Output phase selection

These bits are used to control the phase of the DAC analog signal outputs.

Default value: 00.

REVDA

Output phase selection

Left channel normal output

Left channel inverted output

Right channel normal output

Right channel inverted output

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