Verilog-A release version.
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//VerilogA for modulator,idealfm,veriloga
`include "constants.vams"
`include "disciplines.vams"
module idealfm(Ipow,Iphase,Ilam,Opow,Ophase,Olam,Vdata);
parameter real df = 10e9 from (-inf:inf);
input Ipow,Iphase,Ilam,Vdata;
output Opow,Ophase,Olam;
electrical Ipow,Iphase,Ilam,Opow,Ophase,Olam,Vdata;
real f,dlam;
analog begin
f = (V(Vdata)-0.5)*df;
dlam = `P_C/f;
V(Opow) <+ V(Ipow);
V(Ophase) <+ V(Iphase);
V(Olam) <+ V(Ilam) + dlam;
end
endmodule