{PS_SIN template for PSpice import}
function Signal(t);
begin
  vampl:=@;
  freq:=@;
  td:=@;
  df:=@;
  phase:=@;
  if (0<=t) and (t<=td) then
    Signal:=vampl*sin(2*pi*phase/360)
  else
    Signal:=vampl*sin(2*pi*(freq*(t-td)+phase/360))*exp(-(t-td)*df);
end;