Page 235 - System on Package_ Miniaturization of the Entire System
P. 235

Port 1        Gnd
                                                       0.6 V
                                                       (V dd )



                                     Port 2                              Port 3
                                                       PDN
                                                   Macromodel                0.3 (Vterm)
                             50Ω
                           differential  Gnd                            Gnd     50Ω  50Ω
                             driver



                                             Differential transmission lines (50Ω)
                                                                     V dd



                                                                 V out  V out
                                                     V in                         V in





                                                                     Gnd

                    FIGURE 4.56  Circuit representation.



                                    0.6
                                                   (b)
                                   0.55

                                    0.5
                                                      (a)
                                   0.45
                                  Voltage (V)  0.35
                                    0.4


                                    0.3

                                   0.25
                                    0.2

                                   0.15
                                          2   4   6   8   10  12   14  16  18  20
                                                        Time (ns)
                    FIGURE 4.57  (a) Driver output. (b) Power supply noise.

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