شبیه سازی اسیلاتور حلقوی 5 طبقه با استفاده از HSPICE در تکنولوژی 50nm پروسه CN20
با استفاده از جداول CN20 و با فرض می توان کدهای Netlist در HSPICE را اینگونه نوشت:
* Parameters and models
*————————————————————————
* Level 2 model nchan model for CN20
.MODEL CMOSN NMOS LEVEL=2 PHI=0.600000 TOX=4.3500E-08 XJ=0.200000U TPG=1
+ VTO=0.8756 DELTA=8.5650E+00 LD=2.3950E-07 KP=4.5494E-05
+ UO=573.1 UEXP=1.5920E-01 UCRIT=5.9160E+04 RSH=1.0310E+01
+ GAMMA=0.4179 NSUB=3.3160E+15 NFS=8.1800E+12 VMAX=6.0280E+04
+ LAMBDA=2.9330E-02 CGDO=2.8518E-10 CGSO=2.8518E-10
+ CGBO=4.0921E-10 CJ=1.0375E-04 MJ=0.6604 CJSW=2.1694E-10
+ MJSW=0.178543 PB=0.800000
* Weff = Wdrawn – Delta_W
* The suggested Delta_W is -4.0460E-07
* Level 2 model pchan model for CN20
.MODEL CMOSP PMOS LEVEL=2 PHI=0.600000 TOX=4.3500E-08 XJ=0.200000U TPG=-1
+ VTO=-0.8889 DELTA=4.8720E+00 LD=2.9230E-07 KP=1.5035E-05
+ UO=189.4 UEXP=2.7910E-01 UCRIT=9.5670E+04 RSH=1.8180E+01
+ GAMMA=0.7327 NSUB=1.0190E+16 NFS=6.1500E+12 VMAX=9.9990E+05
+ LAMBDA=4.2290E-02 CGDO=3.4805E-10 CGSO=3.4805E-10
+ CGBO=4.0305E-10 CJ=3.2456E-04 MJ=0.6044 CJSW=2.5430E-10
+ MJSW=0.244194 PB=0.800000
* Weff = Wdrawn – Delta_W
* The suggested Delta_W is -3.6560E-07
.GLOBAL vdd gnd
.PARAM supply=5
.TEMP 27
* Subcircuits
*————————————————————————
.SUBCKT inverter in out
M1 out in gnd gnd CMOSN L=2u W=10u
M2 out in vdd vdd CMOSP L=2u W=10u
.ENDS
* Simulation netlist
*————————————————————————
Vdd vdd gnd ‘supply’
X1 e a inverter
X2 a b inverter
X3 b c inverter
X4 c d inverter
X5 d e inverter
* Stimulus
*————————————————————————
.IC v(a)=’supply’
.MEASURE tpdr * rising prop delay
+ TRIG v(a) VAL=’supply/2′ FALL=1
+ TARG v(b) VAL=’supply/2′ RISE=1
.MEASURE tpdf * falling prop delay
+ TRIG v(a) VAL=’supply/2′ RISE=1
+ TARG v(b) VAL=’supply/2′ FALL=1
.MEASURE frq param=’1/(5*(tpdr+tpdf))’ * frq(Hz) calc
.MEASURE avgpwrdb AVG P(vdd) FROM=0 TO=2422.8465p * avgpwr(dbW) calc
.MEASURE avgpwr param=’pwr(10,(avgpwrdb*100))’ * avgpwr(mW) calc
.MEASURE pdp param='(avgpwr/1000)*(tpdr+tpdf)’ * pdp( ) calc
.TRAN 0.001n 5n
.OPTION POST PROBE
.PROBE V(a)
.END
خروجی های مدار پس ار شبیه سازی به صورت زیر حاصل شد:
***** job concluded
****** transient analysis tnom= 25.000 temp= 27.000 *****
tpdr= 278.9878p targ= 360.3562p trig= 81.3684p
tpdf= 205.5815p targ= 1.5668n trig= 1.3612n
frq= 412.7377x
avgpwrdb= -2.9161m from= 0. to= 2.4228n
avgpwr= 510.9661u
pdp= 247.5985f
