CS4271 datasheet(16/53 Pages) CIRRUS

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CS4271

DS592F1

ADC DIGITAL FILTER CHARACTERISTICS

(Note 17)

Notes: 15. The filter frequency response scales precisely with Fs.

16. Response shown is for Fs equal to 48 kHz. Filter characteristics scale with Fs.

17. Plots of this data are contained in the “Appendix” on page 47. See Figure 45 through Figure 56.

Parameter

Symbol

Min

Typ

Max

Unit

Single Speed Mode

Passband

(-0.1 dB).

(Note 15)

0.47

Passband Ripple.

±0.035

Stopband.

(Note 15)

0.58

Stopband Attenuation.

-95

Group Delay.

tgd

-12/Fs

Double Speed Mode

Passband

(-0.1 dB).

(Note 15)

0.45

Passband Ripple.

±0.035

Stopband.

(Note 15)

0.68

Stopband Attenuation.

-92

Group Delay.

tgd

-9/Fs-

Quad Speed Mode

Passband

(-0.1 dB).

(Note 15)

0.24

Passband Ripple.

±0.035

Stopband.

(Note 15)

0.78

Stopband Attenuation.

-97

Group Delay.

tgd

-5/Fs-

High Pass Filter Characteristics

Frequency Response

-3.0 dB.

-0.13 dB.

(Note 16)

-1

Phase Deviation

@ 20 Hz.

(Note 16)

Deg

Passband Ripple.

Filter Settling Time.

105/Fs

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