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CS4272

16 DS593F1

ADC DIGITAL FILTER CHARACTERISTICS (Note 19)

Notes: 17. The filter frequency response scales precisely with Fs.

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

19. 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 17) 0 - 0.47 Fs

Passband Ripple. - - ±0.035 dB

Stopband. (Note 17) 0.58 - - Fs

Stopband Attenuation. -95 - - dB

Group Delay. t

-12/Fs- s

Double Speed Mode

Passband (-0.1 dB). (Note 17) 0 - 0.45 Fs

Passband Ripple. - - ±0.035 dB

Stopband. (Note 17) 0.68 - - Fs

Stopband Attenuation. -92 - - dB

Group Delay. t

-9/Fs- s

Quad Speed Mode

Passband (-0.1 dB). (Note 17) 0 - 0.24 Fs

Passband Ripple. - - ±0.035 dB

Stopband. (Note 17) 0.78 - - Fs

Stopband Attenuation. -97 - - dB

Group Delay. t

-5/Fs- s

High Pass Filter Characteristics

Frequency Response -3.0 dB.

-0.13 dB. (Note 18)

-1

Phase Deviation @ 20 Hz. (Note 18) - 10 - Deg

Passband Ripple. - - 0 dB

Filter Settling Time.

/Fs

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 52 53

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