Clock generation in ngspice

Fahim
2012-09-19
2013-06-12
  • Fahim

    Fahim - 2012-09-19

    Hi,

    I have the digital model which take the input as clock signal and reset signal.

    I came across the in built model called d_osc which generate the digital clock signal,but I cant find the example on it.

    I am trying to use it in this way,but its not working

    .tran 1e-5 1e-3
    v1 1 0 1.0 pulse( 0 1 1e4 1e6)
    r1 1 0 1k
    a5 1 8 var_clock
    .model var_clock d_osc(cntl_array = [-2 -1 1 2]
    +                      freq_array = [1e3 1e3 10e3 10e3]
    +                      duty_cycle = 0.4 init_phase = 180.0
    +                      rise_delay = 10e-9 fall_delay=8e-9)
    .end
    

    Can you please share the example on how to use d_osc?

     

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