Page 64 - Analog and Digital Filter Design
P. 64

61
                                                       Time and Frequency Response




                           100

                             90


                             80

                        -    70
                        m
                        D
                        -    60
                        Z
                        E
                        I-   50
                        4
                        3
                        Z
                        w    40
                        I-
                        l-
                        a
                             30
                             20


                             10


                              0
                                1                                                       10

                                                 F  R  E  Q  U  E  N  C  Y
                 Figure 2.15
                 0.25 dB  Chebvshev Attenuation Values Filter Order
   59   60   61   62   63   64   65   66   67   68   69