lcosc testing 3.sp

rtd以及mos负阻电感、电容振荡器...

LCosc testing 3

Vdd 1 0 PWL 0 0 3n 5

VB 3 0 PWL 0 0 0.11n 1

Is 4 0 PWL 0 0 0.12n 5m

Lp 1 2 500n

*proper equivilent Rp is R(Q~2+1), where Q=Rp/w0Lp=w0Ls/Rs

Rp 1 2 1g

Cp 1 2 500p

m1 1 2 4 4 nmosmod L=1u W=1u

m2 2 3 4 4 nmosmod L=1u W=1u

*.model nmosmod nmos LEVEL=1 tox=2.5n vto=0.3 kp=140e-6 lambda=0 gamma=0.5 phi=0.6

.model nmosmod nmos LEVEL=13
+ vfb0=-0.4 lvfb=0 wvfb=0
+ phi0=0.65 lphi=0 wphi=0
+ k1=0.5 lk1=0 wk1=0
+ k2=0 lk2=0 wk2=0
+ eta0=1e-3 leta=0 weta=0
+ muz=600 mus=700 x3ms=10
+ xl=0 ld=0 xw=0 wd=0
+ u00=0 lu0=0 wu0=0
+ u1=0 lu1=0 wu1=0
+ tox=172.657
+ acm=2 rsh=0 js=0 jsw=0 is=0 n0=200

.trans 10n 100u

*.fft v(2)

.end