Cirrus Logic CS42428 - Manual (Page 8)

8 DS605F2
CS42428
A/D DIGITAL FILTER CHARACTERISTICS
Notes:
5. The filter frequency response scales precisely with Fs.
6. Response shown is for Fs equal to 48 kHz. Filter characteristics scale with Fs.
Parameter Symbol Min Typ Max Unit
Single-Speed Mode (2 to 50 kHz sample rates)
Passband (-0.1 dB) (Note 5) 0 - 0.47 Fs
Passband Ripple - - 0.035 dB
Stopband (Note 5) 0.58 - - Fs
Stopband Attenuation -95 - - dB
Total Group Delay (Fs = Output Sample Rate) t
gd
- 12/Fs - s
Group Delay Variation vs. Frequency t
gd
- - 0.0 s
Double-Speed Mode (50 to 100 kHz sample rates)
Passband (-0.1 dB) (Note 5) 0 - 0.45 Fs
Passband Ripple - - 0.035 dB
Stopband (Note 5) 0.68 - - Fs
Stopband Attenuation -92 - - dB
Total Group Delay (Fs = Output Sample Rate) t
gd
- 9/Fs - s
Group Delay Variation vs. Frequency t
gd
- - 0.0 s
Quad-Speed Mode (100 to 192 kHz sample rates)
Passband (-0.1 dB) (Note 5) 0 - 0.24 Fs
Passband Ripple - - 0.035 dB
Stopband (Note 5) 0.78 - - Fs
Stopband Attenuation -97 - - dB
Total Group Delay (Fs = Output Sample Rate) t
gd
- 5/Fs - s
Group Delay Variation vs. Frequency t
gd
- - 0.0 s
High-Pass Filter Characteristics
Frequency Response -3.0 dB
-0.13 dB
(Note 6)
- 1
20
-
- Hz
Hz
Phase Deviation @ 20 Hz (Note 6) - 10 - Deg
Passband Ripple - - 0 dB
Filter Setting Time - 10 5 /Fs - s