CS42518
A/D DIGITAL FILTER CHARACTERISTICS
Parameter
Symbol Min
Typ
Max
Unit
Single-Speed Mode (2 to 50 kHz sample rates)
Passband
(-0.1 dB)
(Note 5)
(Note 5)
0
-
-
0.47
Fs
dB
Fs
dB
s
Passband Ripple
Stopband
-
0.035
0.58
-95
-
-
-
Stopband Attenuation
-
12/Fs
-
Total Group Delay (Fs = Output Sample Rate)
Group Delay Variation vs. Frequency
tgd
-
-
-
∆tgd
0.0
µs
Double-Speed Mode (50 to 100 kHz sample rates)
Passband
(-0.1 dB)
(Note 5)
(Note 5)
0
-
0.45
Fs
dB
Fs
dB
s
Passband Ripple
Stopband
-
0.68
-92
-
-
0.035
-
-
-
Stopband Attenuation
-
9/Fs
-
Total Group Delay (Fs = Output Sample Rate)
Group Delay Variation vs. Frequency
tgd
-
∆tgd
-
0.0
µs
Quad-Speed Mode (100 to 192 kHz sample rates)
Passband
(-0.1 dB)
(Note 5)
(Note 5)
0
-
0.24
Fs
dB
Fs
dB
s
Passband Ripple
Stopband
-
0.78
-97
-
-
0.035
-
-
-
Stopband Attenuation
-
5/Fs
-
Total Group Delay (Fs = Output Sample Rate)
Group Delay Variation vs. Frequency
High-Pass Filter Characteristics
tgd
-
∆tgd
-
0.0
µs
Frequency Response
-3.0 dB
-0.13 dB
-
1
20
-
-
Hz
Hz
(Note 6)
(Note 6)
Phase Deviation
Passband Ripple
Filter Setting Time
@ 20 Hz
-
-
-
10
-
0
-
Deg
dB
s
-
105/Fs
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.
DS584F1
9
CIRRUS [ CIRRUS LOGIC ]
