Figure 52. adc double speed mode passband ripple, Figure 53. adc quad speed mode stopband rejection, Figure 54. adc quad speed mode transition band – Cirrus Logic CS4271 User Manual
Page 52: Figure 56. adc quad speed mode passband ripple, Gh figure 56, Cs4271
CS4271
52
DS592F1
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
0.40
0.43
0.45
0.48
0.50
0.53
0.55
Frequency (normalized to Fs)
A
m
pl
it
ude (
d
B
)
-0.10
-0.08
-0.05
-0.03
0.00
0.03
0.05
0.08
0.10
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
Frequency (normalized to Fs)
A
m
pl
it
ude
(
d
B
)
Figure 51. ADC Double Speed Mode Transition Band (Detail)
Figure 52. ADC Double Speed Mode Passband Ripple
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
Frequency (normalized to Fs)
A
m
pl
it
ude
(
d
B
)
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0.2
0.25
0.3
0.35
0.4
0.45
0.5
0.55
0.6
0.65
0.7
0.75
0.8
Frequency (normalized to Fs)
A
m
pl
it
ud
e (
d
B
)
Figure 53. ADC Quad Speed Mode Stopband Rejection
Figure 54. ADC Quad Speed Mode Transition Band
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
0.5
0.55
0.6
Frequency (normalized to Fs)
Amplit
ude
(d
B)
-0.10
-0.08
-0.06
-0.04
-0.02
0.00
0.02
0.04
0.06
0.08
0.10
0.00
0.05
0.10
0.15
0.20
0.25
Frequency (normalized to Fs)
Am
plit
ud
e (d
B)
Figure 55. ADC Quad Speed Mode Transition Band (Detail)
Figure 56. ADC Quad Speed Mode Passband Ripple