Cirrus Logic CS4270 - Manual (Page 39)

DS686F1 39
CS4270
0.45 0.46 0.47 0.48 0.49 0.5 0.51 0.52 0.53 0.54 0.55
- 10
- 9
- 8
- 7
- 6
- 5
- 4
- 3
- 2
- 1
0
1
Frequency (normalized to Fs)
Amplitude
dB
0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
-0. 2
-0. 1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
Frequency (normalized to Fs)
Amplitude
dB
Figure 29. DAC Double-Speed Transition Band (detail) Figure 30. DAC Double-Speed Passband Ripple
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
Amplitude (dB)
Frequency(normalized to Fs)
0.35 0.4 0.45 0.5 0.55 0.6 0.65 0.7 0.75
-60
-50
-40
-30
-20
-10
0
Amplitude (dB)
Frequency(normalized to Fs)
Figure 31. DAC Quad-Speed Stopband Rejection Figure 32. DAC Quad-Speed Transition Band
0.4 0.45 0.5 0.55 0.6 0.65 0.7
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
Amplitude (dB)
Frequency(normalized to Fs)
0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
-1. 5
-1
-0. 5
0
Frequency (normalized to Fs)
Amplitude
dB
Figure 33. DAC Quad-Speed Transition Band (detail) Figure 34. DAC Quad-Speed Passband Ripple