PCM1738ESLASH2K datasheet(35/47 Pages) TI2

Part #	PCM1738E/2K

Description	24-Bit, 192-kHz Sampling, Advanced Segment, Audio-Stereo Digital-to-Analog Converter

PDF	47 Pages

Scroll/Zoom	100%

Manufacturer	TI2 [Texas Instruments]

Direct Link	https://www.ti.com

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PCM1738

SBAS174C – FEBRUARY 2002 – REVISED FEBRUARY 2007

OS[1:0]

Delta-Sigma Oversampling Rate Selection

These bits are available for read/write.

Default Value: 00

OS[1:0]

Operation Speed Select

× f

WDCK (default)

Reserved

× f

WDCK

× f

WDCK

The effective oversampling rate is determined by the oversampling performed by both the external

digital filter and the delta-sigma modulator. For example, if the external digital filter is 8

oversampling, and the user selects OS[1:0] = 0, then the delta-sigma modulator oversamples by 8

×,

resulting in an effective oversampling rate of 64

×.

ZFGx

Zero-Detect Flag

where x = L or R, corresponding to the DAC output channel.

These bits are available only for read-back.

Default value: 00

ZFGx = 0

Not ZERO

ZFGx = 1

ZERO detected

When the PCM1738 detects that audio input data is continuously zero for 1024 WDCKs, the ZFGx

bit is set to 1 for the corresponding channel(s). Zero-detect flags are also available at ZEROL (pin

2) and ZEROR (pin 3).

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PCM1738E/2K Datasheet(PDF) 35 Page - Texas Instruments