Datasheet

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PCM1738

SBAS174C – FEBRUARY 2002 – REVISED FEBRUARY 2007

B15 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0

W/R Read/Write Mode Control

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

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

Default value: 0

SRST System Reset Control

This bit is read/write.

Default value: 0

SRST = 0 Normal operation (default)

SRST = 1 System reset operation

The SRST bit is used to reset the PCM1738 to the initial system condition.

MRST Mode Control Register Reset Control

This bit is read/write.

Default value: 0

MRST = 0 Normal operation (default)

MRST = 1 Mode control register reset operation

The MRST bit is used to set the mode control registers to their default conditions.

DFTH Digital Filter Bypass (or Through-Mode) Control

This bit is read/write.

Default value: 0

DFTH = 0 Digital filter enabled (default)

DFTH = 1 Digital filter bypassed for either external-digital-filter mode or DSD mode

The DFTH bit is used to enable or bypass the internal digital filter. This function is used when using

the external-digital-filter interface or the DSD-mode interface.

MONO Monaural Mode Selection

This bit is read/write.

Default value: 0

MONO = 0 Stereo mode (default)

MONO = 1 Monaural mode

The MONO function is used to change the operation mode from normal stereo mode to monaural

mode. When the monaural mode is selected, both DACs operate in balanced mode for the selected

audio input data. Left- and right-channel data selection is set by the CHSL bit, described as follows.

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