Cirrus-logic CS4270 Manuel d'utilisateur télécharger pdf (Page 38)

38 DS686F1

CS4270

9. FILTER PLOTS

Figure 23. DAC Single-Speed Stopband Rejection Figure 24. DAC Single-Speed Transition Band

0.45 0.46 0.47 0.48 0.49 0.5 0.51 0.52 0.53 0.54 0.5

-10

-9

-8

-7

-6

-5

-4

-3

-2

-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

-0.25

-0. 2

-0.15

-0. 1

-0.05

0.05

Frequency (normalized to Fs)

Amplitude dB

Figure 25. DAC Single-Speed Transition Band (detail) Figure 26. DAC Single-Speed Passband Ripple

Figure 27. DAC Double-Speed Stopband Rejection Figure 28. DAC Double-Speed Transition Band

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 44 45

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Cirrus-logic CS4270 Manuel d'utilisateur Page 38