Cirrus-logic CS4271 Manual de usuario Pagina 49

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CS4271
DS592F1 49
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
120
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80
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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
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20
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Frequency(normalized to Fs)
Amplitude (dB)
Figure 33. DAC Double Speed (slow) Stopband Rejection Figure 34. DAC 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 0.5
5
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1
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Frequency(normalized to Fs)
Amplitude (dB)
0 0.05 0.1 0.15 0.2 0.25 0.3 0.3
5
0.02
0.015
0.01
0.005
0
0.005
0.01
0.015
0.02
Frequency(normalized to Fs)
Amplitude (dB)
Figure 35. DAC Double Speed (slow) Transition Band (detail) Figure 36. DAC 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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0
Frequency(normalized to Fs)
Amplitude (dB)
0.2 0.3 0.4 0.5 0.6 0.7 0.
8
120
100
80
60
40
20
0
Frequency(normalized to Fs)
Amplitude (dB)
Figure 37. DAC Quad Speed (fast) Stopband Rejection Figure 38. DAC Quad Speed (fast) Transition Band
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