Cirrus-logic CS4265 Instrukcja Użytkownika Pobierz pdf (Strona 48)

48 DS657F3

CS4265

8. DAC FILTER PLOTS

Figure 18. DAC Single-Speed Stopband Rejection Figure 19. DAC Single-Speed Transition Band

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 20. DAC Single-Speed Transition Band Figure 21. DAC Single-Speed Passband Ripple

0.45 0.46 0.47 0.48 0.49 0.5 0.51 0.52 0.53 0.54 0.5 5

-10

-9

-8

-7

-6

-5

-4

-3

-2

-1

Frequency (normalized to Fs)

Amplitude dB

Figure 22. DAC Double-Speed Stopband Rejection Figure 23. DAC Double-Speed Transition Band

1 2 ... 43 44 45 46 47 48 49 50 51 52 53 ... 56 57

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Cirrus-logic CS4265 Instrukcja Użytkownika Strona 48