ADC DIGITAL FILTER CHARACTERISTICS
Parameter (Note 8, 9)
Min
Typ
Max
Unit
Single Speed Mode (Note 9)
Passband (Frequency Response)
Passband Ripple
to -0.1 dB corner
0
-
0.4896
Fs
dB
Fs
dB
s
-
0.5688
70
-
0.08
Stopband
-
-
-
-
-
Stopband Attenuation
Total Group Delay
-
12/Fs
Double Speed Mode (Note 9)
Passband (Frequency Response)
Passband Ripple
to -0.1 dB corner
0
-
0.4896
Fs
dB
Fs
dB
s
-
0.5604
69
-
0.16
Stopband
-
-
-
-
-
Stopband Attenuation
Total Group Delay
-
9/Fs
High Pass Filter Characteristics
Frequency Response -3.0 dB
-0.13 dB
-
1
20
-
-
Hz
Hz
Phase Deviation
Passband Ripple
Filter Settling Time
@ 20 Hz
-
-
-
10
-
-
Deg
dB
s
0
0
5
10 /Fs
Notes: 8. Filter response is guaranteed by design.
9. Response is clock dependent and will scale with Fs. Note that the response plots (Figures 26 to 33) have
been normalized to Fs and can be de-normalized by multiplying the X-axis scale by Fs.
DS646PP2
15
CIRRUS [ CIRRUS LOGIC ]
