WM8524

Production Data

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PD, Rev 4.1, October 2011

18

DIGITAL FILTER CHARACTERISTICS

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

DAC Filter – 256fs to 1152fs

Passband

 0.1dB

0.454fs

Passband Ripple

0.1

dB

Stopband

0.546fs

Stopband attenuation

f > 0.546fs

-50

dB

Group Delay

10

Fs

DAC Filter – 128fs and 192fs

Passband

 0.1dB

0.247fs

Passband Ripple

0.1

dB

Stopband

0.753fs

Stopband attenuation

f > 0.753fs

-50

dB

Group Delay

10

Fs

TERMINOLOGY

1.

Stop Band Attenuation (dB) – the degree to which the frequency spectrum is attenuated (outside audio band)

2.

Pass-band Ripple – any variation of the frequency response in the pass-band region