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16 lines
476 B
16 lines
476 B
* frequency-phase detector according to
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* http://www.uwe-kerwien.de/pll/pll-phasenvergleich.htm
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.subckt f-p-det d_R d_V d_U d_U_ d_D d_D_
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aa1 [d_U d_D] d_rset and1
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.model and1 d_and(rise_delay = 1e-10 fall_delay = 0.1e-9
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+ input_load = 0.5e-12)
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ad1 d_d1 d_R d_d0 d_rset d_U d_U_ flop1
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ad2 d_d1 d_V d_d0 d_rset d_D d_D_ flop1
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.model flop1 d_dff(clk_delay = 1.0e-10 set_delay = 1.0e-10
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+ reset_delay = 1.0e-10 ic = 2 rise_delay = 1.0e-10
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+ fall_delay = 1e-10)
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.ends f-p-det
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