CS4245 Datasheet, PDF (15/54 Pages) Cirrus Logic – 105 dB, 24-Bit, 192 kHz Streo Sudio CODEC

CS4245
ADC DIGITAL FILTER CHARACTERISTICS
Parameter (Note 14, 16)
Single Speed Mode
Passband
(-0.1 dB)
Passband Ripple
Stopband
Stopband Attenuation
Total Group Delay (Fs = Output Sample Rate)
Double Speed Mode
Passband
(-0.1 dB)
Passband Ripple
Stopband
Stopband Attenuation
Total Group Delay (Fs = Output Sample Rate)
Quad Speed Mode
Passband
(-0.1 dB)
Passband Ripple
Stopband
Stopband Attenuation
Total Group Delay (Fs = Output Sample Rate)
High Pass Filter Characteristics
Frequency Response -3.0 dB
-0.13 dB
Phase Deviation
@ 20Hz
Passband Ripple
Filter Settling Time
Symbol Min Typ Max Unit
0
- 0.4896 Fs
-
- 0.035 dB
0.5688 -
-
Fs
70
-
-
dB
t_gd
- 12/Fs -
s
0
- 0.4896 Fs
-
- 0.025 dB
0.5604 -
-
Fs
69
-
-
dB
t_gd
- 9/Fs
-
s
0
- 0.2604 Fs
-
- 0.025 dB
0.5000 -
-
Fs
60
-
-
dB
t_gd
- 5/Fs
-
s
(Note 15)
(Note 15)
-
1
-
Hz
20
-
Hz
-
10
-
Deg
-
-
0
dB
10⁵/Fs
s
Note: 14. Filter response is guaranteed by design.
15. Response shown is for Fs equal to 48 kHz.
16. Response is clock dependent and will scale with Fs. Note that the response plots (Figures 33 to 44) are
normalized to Fs and can be de-normalized by multiplying the X-axis scale by Fs.
15