Cirrus-logic CS4352 Instrukcja Użytkownika Pobierz pdf (Strona 16)

16 DS684F2

CS4352

5. DIGITAL FILTER RESPONSE PLOTS

0.4 0.5 0.6 0.7 0.8 0.9 1

−120

−100

−80

−60

−40

−20

Frequency(normalized to Fs)

Amplitude (dB)

0.4 0.42 0.44 0.46 0.48 0.5 0.52 0.54 0.56 0.58 0.6

−120

−100

−80

−60

−40

−20

Frequency(normalized to Fs)

Amplitude (dB)

Figure 7. Single-Speed Stopband Rejection Figure 8. Single-Speed Transition Band

0.45 0.46 0.47 0.48 0.49 0.5 0.51 0.52 0.53 0.54 0.55

−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

−0.02

−0.015

−0.01

−0.005

0.005

0.01

0.015

0.02

Frequency(normalized to Fs)

Amplitude (dB)

Figure 9. Single-Speed Transition Band (detail) Figure 10. Single-Speed Passband Ripple

0.4 0.5 0.6 0.7 0.8 0.9 1

120

100

Frequency(normalized to Fs)

Amplitude (dB)

0.4 0.42 0.44 0.46 0.48 0.5 0.52 0.54 0.56 0.58 0.6

120

100

Frequency(normalized to Fs)

Amplitude (dB)

Figure 11. Double-Speed Stopband Rejection Figure 12. Double-Speed Transition Band

1 2 ... 11 12 13 14 15 16 17 18 19 20

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