| * Inductor value test |
| |
| * Include SkyWater sky130 device models |
| .include "../../../models/sky130_fd_pr__model__inductors.model.spice" |
| |
| .param lofreq = 1Meg |
| .csparam lofreq = {lofreq} |
| .param hifreq = 10G |
| .csparam hifreq = {hifreq} |
| |
| V1 N2 0 1.8 |
| IAC N2 N3 dc 0 ac 1 |
| |
| * L-C tank with ideal capacitor |
| X1 N3 N4 mid 0 sky130_fd_pr__ind_05_125 |
| C34 N3 N4 1.0E-10 |
| R1 N4 0 100 |
| |
| .ac dec 100 {lofreq} {hifreq} |
| .control |
| run |
| echo inductance |
| let resp=mag(v(N4,N3)) |
| meas ac ymax max_at resp |
| * Note: 39.478 is (2*pi)^2 |
| let l=1/(1.0E-10*39.478*ymax*ymax) |
| print l |
| quit |
| .endc |
| |
| .end |
