CS5376A(2004) 查看數據表（PDF） - Cirrus Logic

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CS5376A
(Rev.:2004)

Low Power Multi-Channel Decimation Filter

Cirrus Logic 

CS5376A

loopback testing expects 512 kHz ∆Σ data for the

MDATA inputs.

A mismatch of the TBS generator full scale output

and the MDATA full scale input results in an am-

plitude mismatch when testing in loopback mode.

The TBS generator outputs a 75% maximum one’s

density, while the MDATA inputs expect an 86%

maximum one’s density from a ∆Σ modulator, re-

sulting in a measured full scale error of -3.6 dB.

17.8 TBS Synchronization

When the TSYNC bit is set in the TBSCFG regis-

ter, the MSYNC signal resets the sine wave data

pointer and phase aligns the TBS signal output.

Once the digital filter is settled, all CS5376A de-

vices receiving the SYNC signal will have identical

TBS signal phase. See “Synchronization” on

page 25 for more information about the SYNC and

MSYNC signals.

If TSYNC is clear, MSYNC has no effect on the

TBS data pointer and no change in the TBS output

phase will occur during synchronization.

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