Cirrus Logic CS4398 - Manual (Page 43)

DS568F1 43
CS4398
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
120
100
80
60
40
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0
Frequency(normalized to Fs)
Amplitude (dB)
0.2 0.3 0.4 0.5 0.6 0.7 0.8
120
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Frequency(normalized to Fs)
Amplitude (dB)
Figure 32. Double-Speed (slow) Stopband Rejection Figure 33. Double-Speed (slow) Transition Band
0.45 0.46 0.47 0.48 0.49 0.5 0.51 0.52 0.53 0.54 0.55
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9
8
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6
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4
3
2
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Frequency(normalized to Fs)
Amplitude (dB)
0 0.05 0.1 0.15 0.2 0.25 0.3 0.35
0.02
0.015
0.01
0.005
0
0.005
0.01
0.015
0.02
Frequency(normalized to Fs)
Amplitude (dB)
Figure 34. Double-Speed (slow) Transition Band (detail) Figure 35. Double-Speed (slow) Passband Ripple
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
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Frequency(normalized to Fs)
Amplitude (dB)
0.2 0.3 0.4 0.5 0.6 0.7 0.8
120
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Frequency(normalized to Fs)
Amplitude (dB)
Figure 36. Quad-Speed (fast) Stopband Rejection Figure 37. Quad-Speed (fast) Transition Band