Digital filter response plots, Figure 13. single-speed (fast) stopband rejection, Figure 14. single-speed (fast) transition band – Cirrus Logic CS4351 User Manual
Page 31: Figure 16. single-speed (fast) passband ripple, Figure 17. single-speed (slow) stopband rejection, Figure 18. single-speed (slow) transition band, Digital filter response plots” on, Nd in, Figures 15

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CS4351
7. DIGITAL FILTER RESPONSE PLOTS
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Figure 13. Single-Speed (fast) Stopband Rejection
Figure 14. Single-Speed (fast) Transition Band
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Figure 15. Single-Speed (fast) Transition Band (detail)
Figure 16. Single-Speed (fast) Passband Ripple
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Figure 17. Single-Speed (slow) Stopband Rejection
Figure 18. Single-Speed (slow) Transition Band