AN 669: Drive-On-Chip Design Example for Cyclone V Devices

ID 683466
Date 5/15/2022
Public
Document Table of Contents

9.10.6. IIR Filter Examples

Table 22.  Exanple IIR Filters
Description Ωd (Hz) Ωn (Hz) ζd 
(nondimensional) ζn
(nondimensional)
Sharp notch with 10x gain reduction at 2 kHz 2,000 2,000 0.3 0.03
Wide notch with 10x gain reduction at 1 kHz 1,000 1,000 100 10
Figure 51. Bode Plot—Sharp Notch with 10x Gain Reduction at 2 kHz
Figure 52. Bode Plot, Wide Notch with 10x Gain Reduction at 1 kHz