parnia
Newbie level 3
Hi all
I'm master student. i want to simulate phase noise of phase locked loop in HSPICE RF. but when i simulate it, I see this warning:
My netlist for define ideal vco as follows:
please help me?
thanks.
I'm master student. i want to simulate phase noise of phase locked loop in HSPICE RF. but when i simulate it, I see this warning:
even this warning be seen for an ideal vco.Warning: HB_WARN.3: HB oscillator convergence failure. Oscillator analysis terminated.
My netlist for define ideal vco as follows:
Code:
*******VCO DEMO******************
.option POST
.TRAN .01n 100n
***********************vco_define***************
Evco nco 0 vol='0+1.8*sin(6.28*1e9*V(vctrl)*time)'
Vcontrol vctrl 0 pwl (0 0 100n .1)
R1 nco 0 10meg
**************** Harmonic Balance Test Bench****
.HBOSC tones=150meg nharms=10 PROBENODE=nco,0,0.9
.PHASENOISE v(nco) dec 10 0 300meg
.END
please help me?
thanks.
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