CS42448 datasheet(13/64 Pages) CIRRUS

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DS648F2

CS42448

ADC DIGITAL FILTER CHARACTERISTICS

Notes:

8. Filter response is guaranteed by design.

9. Response is clock-dependent and will scale with Fs. Note that the response plots (Figures 32 to 43) have

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

Parameter (Notes 8, 9)

Min

Typ

Max

Unit

Single-Speed Mode (Note 9)

Passband (Frequency Response)

to -0.1 dB corner

0.4896

Passband Ripple

0.08

Stopband

0.5688

Stopband Attenuation

Total Group Delay

12/Fs

Double-Speed Mode (Note 9)

Passband (Frequency Response)

to -0.1 dB corner

0.4896

Passband Ripple

0.16

Stopband

0.5604

Stopband Attenuation

Total Group Delay

9/Fs

Quad-Speed Mode (Note 9)

Passband (Frequency Response)

to -0.1 dB corner

0.2604

Passband Ripple

0.16

Stopband

0.5000

Stopband Attenuation

Total Group Delay

5/Fs

High-Pass Filter Characteristics

Frequency Response

-3.0 dB

-0.13 dB

-1

Phase Deviation

@ 20 Hz

Deg

Passband Ripple

Filter Settling Time

105/Fs

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