?? plltop.vams
字號:
`include "constants.vams"`include "disciplines.vams"`timescale 10ps / 1psmodule plltop (); electrical gnd; ground gnd; reg reset; initial begin reset = 1; #100 reset = 0; end vsource #(.type("sine"), .ampl(2.5), .dc(2.5), .freq(15M)) Vin (ref, gnd); pfd PFD (.reset(reset), .qinc(up), .active(fb) , .ref(ref), .qdec(dwn)); cp #(.cur(1m)) CP (.nout(gnd), .dec(dwn), .inc(up), .pout(err)); capacitor #(.c(30n)) C (err, err2); resistor #(.r(200)) R (err2, gnd); vco #(.f0(1.5E9), .kvco(50.0E6), .rin(100k)) VCO (.ps(err), .ns(gnd), .out(out)); fd FD (.reset(reset), .out(fb), .clk(out));endmodule
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