CS5345 datasheet(9/39 Pages) CIRRUS

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CS5345

ADC DIGITAL FILTER CHARACTERISTICS

Note:

5. Filter response is guaranteed by design.

6. Response shown is for Fs equal to 48 kHz.

7. Response is clock dependent and will scale with Fs. Note that the response plots (Figures 13 to 24) are

normalized to Fs and can be de-normalized by multiplying the X-axis scale by Fs.

Parameter (Note 5, 7)

Symbol

Min

Typ

Max

Unit

Single Speed Mode

Passband

(-0.1 dB)

0.4896

Passband Ripple

0.035

Stopband

0.5688

Stopband Attenuation

Total Group Delay (Fs = Output Sample Rate)

tgd

12/Fs

Double Speed Mode

Passband

(-0.1 dB)

0.4896

Passband Ripple

0.025

Stopband

0.5604

Stopband Attenuation

Total Group Delay (Fs = Output Sample Rate)

tgd

-9/Fs

Quad Speed Mode

Passband

(-0.1 dB)

0.2604

Passband Ripple

0.025

Stopband

0.5000

Stopband Attenuation

Total Group Delay (Fs = Output Sample Rate)

tgd

-5/Fs

High Pass Filter Characteristics

Frequency Response

-3.0 dB

-0.13 dB

(Note 6)

-1

Phase Deviation

@ 20Hz

(Note 6)

Deg

Passband Ripple

Filter Settling Time

105/Fs

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