CS4270_06 Datasheet, PDF (15/49 Pages) Cirrus Logic – 24-Bit, 192 kHz Stereo Audio CODEC

CS4270
ADC DIGITAL FILTER CHARACTERISTICS
(Measurement Bandwidth is 10 Hz to 20 kHz unless otherwise specified) (Note 11)
Parameter
Single-Speed Mode
Passband
(-0.1 dB)
Passband Ripple
Stopband
Stopband Attenuation
Group Delay
Double-Speed Mode
Passband
(-0.1 dB)
Passband Ripple
Stopband
Stopband Attenuation
Group Delay
Quad-Speed Mode
Passband
(-0.1 dB)
Passband Ripple
Stopband
Stopband Attenuation
Group Delay
High-Pass Filter Characteristics
Frequency Response
-3.0 dB
-0.13 dB
Phase Deviation
@ 20 Hz
Passband Ripple
Symbol Min
(Note 12)
(Note 12)
t_gd
(Note 12)
(Note 12)
t_gd
(Note 12)
(Note 12)
t_gd
(Note 13)
(Note 13)
0
-
0.57
70
-
0
-
0.56
69
-
0
-
0.50
60
-
-
-
-
Typ Max
-
-
-
-
12/Fs
0.49
0.035
-
-
-
- 0.49
- 0.05
-
-
-
-
9/Fs -
- 0.26
- 0.05
-
-
-
-
5/Fs -
1
-
20
-
10
-
-
0
Unit
Fs
dB
Fs
dB
s
Fs
dB
Fs
dB
s
Fs
dB
Fs
dB
s
Hz
Hz
deg
dB
11. Plots of this data are contained in Section 9. “Filter Plots” on page 41. See Figures 24 through 47.
12. The filter frequency response scales precisely with Fs.
13. Response shown is for Fs equal to 48 kHz. Filter characteristics scale with Fs.
DS686PP1
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