| **.subckt tb_charge_pump |
| VSS vss GND {vss} |
| VDD vdd vss {vdd} |
| Vref net2 vss PULSE(0 {vin} 0 1p 1p {Tref/2} {Tref}) DC {vin} AC 0 |
| Vdiv net1 vss PULSE(0 {vin} 0 1p 1p {Tref/2} {Tref}) DC {vin} AC 0 |
| C1 net3 vss 33.5p m=1 |
| R1 vctrl net3 2k m=1 |
| C2 vctrl vss 6.7p m=1 |
| vout cp_out vctrl 0 |
| x1 vss vdd net16 net17 net18 net19 Reset PFD |
| x5 vdd net4 net2 vss inverter_cp_x2 |
| x6 vdd QA net4 vss inverter_cp_x2 |
| x7 vdd net5 net1 vss inverter_cp_x2 |
| x8 vdd QB net5 vss inverter_cp_x2 |
| x3 Up vdd QA nUp Down QB vss nDown pfd_cp_interface_pex_c |
| x2 vdd Up nUp cp_out Down nDown vss iref_cp nswitch pswitch biasp charge_pump_pex_c |
| I0 net6 vss 100u |
| x4 vdd net6 vss iref_cp net7 net8 net9 net10 net11 net12 net13 net14 net15 bias_pex_c |
| **** begin user architecture code |
| |
| |
| |
| * Parameters |
| .param kp = 1.0 |
| .param vdd = kp*1.8 |
| .param vss = 0.0 |
| .param vin = vdd |
| .param fref = 100e6 |
| .param Tref = 1/fref |
| .param Cn = 0.0001fF |
| .param Cp = 0.0001fF |
| .param iref=100u |
| |
| .options TEMP = 100.0 |
| .options RSHUNT = 1e20 |
| |
| * Models |
| .lib ~/skywater/skywater-pdk/libraries/sky130_fd_pr_ngspice/latest/models/corners/sky130.lib SS |
| *.include ~/caravel_analog_fulgor/xschem/simulations/simulations/PFD_pex_c.spice |
| .include ~/caravel_analog_fulgor/xschem/simulations/pfd_cp_interface_pex_c.spice |
| .include ~/caravel_analog_fulgor/xschem/simulations/charge_pump_pex_c.spice |
| .include ~/caravel_analog_fulgor/xschem/simulations/bias_pex_c.spice |
| |
| * Data to save |
| .save all |
| |
| .ic v(A) = 0.0 |
| .ic v(B) = 0.0 |
| .ic v(vctrl) = 0.0 |
| |
| * Simulation |
| .control |
| op |
| echo . |
| echo ---- M1 bias ---- |
| print @M.X4.XM1.msky130_fd_pr__pfet_01v8_lvt[id] |
| print @M.X4.XM1.msky130_fd_pr__pfet_01v8_lvt[vds] |
| print @M.X4.XM1.msky130_fd_pr__pfet_01v8_lvt[vdsat] |
| print @M.X4.XM1.msky130_fd_pr__pfet_01v8_lvt[vgs] |
| echo ---- M2 bias ---- |
| print @M.X4.XM2.msky130_fd_pr__pfet_01v8_lvt[id] |
| print @M.X4.XM2.msky130_fd_pr__pfet_01v8_lvt[vds] |
| print @M.X4.XM2.msky130_fd_pr__pfet_01v8_lvt[vdsat] |
| print @M.X4.XM2.msky130_fd_pr__pfet_01v8_lvt[vgs] |
| echo ---- M3 bias ---- |
| print @M.X4.XM3.msky130_fd_pr__pfet_01v8_lvt[id] |
| print @M.X4.XM3.msky130_fd_pr__pfet_01v8_lvt[vds] |
| print @M.X4.XM3.msky130_fd_pr__pfet_01v8_lvt[vdsat] |
| print @M.X4.XM3.msky130_fd_pr__pfet_01v8_lvt[vgs] |
| echo ---- M4 bias ---- |
| print @M.X4.XM4.msky130_fd_pr__pfet_01v8_lvt[id] |
| print @M.X4.XM4.msky130_fd_pr__pfet_01v8_lvt[vds] |
| print @M.X4.XM4.msky130_fd_pr__pfet_01v8_lvt[vdsat] |
| print @M.X4.XM4.msky130_fd_pr__pfet_01v8_lvt[vgs] |
| echo ---- M5 bias ---- |
| print @M.X4.XM5.msky130_fd_pr__nfet_01v8[id] |
| print @M.X4.XM5.msky130_fd_pr__nfet_01v8[vds] |
| print @M.X4.XM5.msky130_fd_pr__nfet_01v8[vdsat] |
| print @M.X4.XM5.msky130_fd_pr__nfet_01v8[vgs] |
| echo ---- M6 bias ---- |
| print @M.X4.XM6.msky130_fd_pr__nfet_01v8[id] |
| print @M.X4.XM6.msky130_fd_pr__nfet_01v8[vds] |
| print @M.X4.XM6.msky130_fd_pr__nfet_01v8[vdsat] |
| print @M.X4.XM6.msky130_fd_pr__nfet_01v8[vgs] |
| echo ---- M7 bias ---- |
| print @M.X4.XM7.msky130_fd_pr__pfet_01v8[id] |
| print @M.X4.XM7.msky130_fd_pr__pfet_01v8[vds] |
| print @M.X4.XM7.msky130_fd_pr__pfet_01v8[vdsat] |
| print @M.X4.XM7.msky130_fd_pr__pfet_01v8[vgs] |
| echo --- Cgs --- |
| print @M.X2.XM7.msky130_fd_pr__pfet_01v8[cgs] |
| print @M.X2.XM8.msky130_fd_pr__nfet_01v8[cgs] |
| echo --- Cgs --- |
| print @M.X2.XM7.msky130_fd_pr__pfet_01v8[cgd] |
| print @M.X2.XM8.msky130_fd_pr__nfet_01v8[cgd] |
| echo --- Cgs --- |
| print @M.X2.XM7.msky130_fd_pr__pfet_01v8[cgb] |
| print @M.X2.XM8.msky130_fd_pr__nfet_01v8[cgb] |
| echo --- Cgs --- |
| print @M.X2.XM7.msky130_fd_pr__pfet_01v8[cgg] |
| print @M.X2.XM8.msky130_fd_pr__nfet_01v8[cgg] |
| |
| reset |
| |
| |
| tran 0.01ns 400ns |
| write tb_cp_gate_switched_tran.raw |
| plot i(v.x2.vm1) i(v.x2.vm2) |
| plot v(vctrl) v(nDown)+2 v(Down)+4 v(nUp)+6 v(Up)+8 v(QB)+10 v(QA)+12 |
| plot v(pswitch) v(nswitch) xlimit 4ns 44ns |
| .endc |
| |
| |
| |
| **** end user architecture code |
| **.ends |
| |
| * expanding symbol: PFD.sym # of pins=7 |
| * sym_path: /home/dhernando/caravel_analog_fulgor/xschem/PFD.sym |
| * sch_path: /home/dhernando/caravel_analog_fulgor/xschem/PFD.sch |
| .subckt PFD vss vdd Up A B Down Reset |
| *.iopin vdd |
| *.iopin vss |
| *.ipin A |
| *.ipin B |
| *.opin Down |
| *.opin Up |
| *.iopin Reset |
| x1 vdd A Up Reset vss DFF |
| x2 vdd B Down Reset vss DFF |
| x3 vdd Reset Up Down vss and_pfd |
| .ends |
| |
| |
| * expanding symbol: inverter_cp_x2.sym # of pins=4 |
| * sym_path: /home/dhernando/caravel_analog_fulgor/xschem/inverter_cp_x2.sym |
| * sch_path: /home/dhernando/caravel_analog_fulgor/xschem/inverter_cp_x2.sch |
| .subckt inverter_cp_x2 vdd out in vss |
| *.iopin vss |
| *.ipin in |
| *.opin out |
| *.iopin vdd |
| XM2 out in vdd vdd sky130_fd_pr__pfet_01v8 L=0.15 W=1.25 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29' |
| + pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W' |
| + sa=0 sb=0 sd=0 mult=6 m=6 |
| XM1 out in vss vss sky130_fd_pr__nfet_01v8 L=0.15 W=1.25 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29' |
| + pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W' |
| + sa=0 sb=0 sd=0 mult=6 m=6 |
| .ends |
| |
| |
| * expanding symbol: DFF.sym # of pins=5 |
| * sym_path: /home/dhernando/caravel_analog_fulgor/xschem/DFF.sym |
| * sch_path: /home/dhernando/caravel_analog_fulgor/xschem/DFF.sch |
| .subckt DFF D CLK Q Reset vss |
| *.ipin D |
| *.ipin CLK |
| *.opin Q |
| *.ipin Reset |
| *.iopin vss |
| x1 D CLK Q P vss nor |
| x2 D P P1 Q vss nor |
| x3 D P P2 P1 vss nor |
| x4 D P1 Reset P2 vss nor |
| .ends |
| |
| |
| * expanding symbol: and_pfd.sym # of pins=5 |
| * sym_path: /home/dhernando/caravel_analog_fulgor/xschem/and_pfd.sym |
| * sch_path: /home/dhernando/caravel_analog_fulgor/xschem/and_pfd.sch |
| .subckt and_pfd vdd out A B vss |
| *.iopin vdd |
| *.iopin vss |
| *.opin out |
| *.ipin A |
| *.ipin B |
| XM1 out_nand A net1 vss sky130_fd_pr__nfet_01v8 L=0.15 W=0.45 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29' |
| + pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W' |
| + sa=0 sb=0 sd=0 mult=1 m=1 |
| XM2 out_nand A vdd vdd sky130_fd_pr__pfet_01v8 L=0.15 W=0.9 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29' |
| + pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W' |
| + sa=0 sb=0 sd=0 mult=1 m=1 |
| XM3 net1 B vss vss sky130_fd_pr__nfet_01v8 L=0.15 W=0.45 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29' |
| + pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W' |
| + sa=0 sb=0 sd=0 mult=1 m=1 |
| XM4 out_nand B net2 vss sky130_fd_pr__nfet_01v8 L=0.15 W=0.45 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29' |
| + pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W' |
| + sa=0 sb=0 sd=0 mult=1 m=1 |
| XM5 net2 A vss vss sky130_fd_pr__nfet_01v8 L=0.15 W=0.45 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29' |
| + pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W' |
| + sa=0 sb=0 sd=0 mult=1 m=1 |
| XM6 out_nand B vdd vdd sky130_fd_pr__pfet_01v8 L=0.15 W=0.9 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29' |
| + pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W' |
| + sa=0 sb=0 sd=0 mult=1 m=1 |
| XM7 out out_nand vdd vdd sky130_fd_pr__pfet_01v8 L=0.15 W=0.9 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29' |
| + pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W' |
| + sa=0 sb=0 sd=0 mult=1 m=1 |
| XM8 out out_nand vss vss sky130_fd_pr__nfet_01v8 L=0.15 W=0.45 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' |
| + as='int((nf+2)/2) * W/nf * 0.29' pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' |
| + nrd='0.29 / W' nrs='0.29 / W' sa=0 sb=0 sd=0 mult=1 m=1 |
| .ends |
| |
| |
| * expanding symbol: nor.sym # of pins=5 |
| * sym_path: /home/dhernando/caravel_analog_fulgor/xschem/nor.sym |
| * sch_path: /home/dhernando/caravel_analog_fulgor/xschem/nor.sch |
| .subckt nor vdd A B out vss |
| *.ipin A |
| *.ipin B |
| *.iopin vdd |
| *.opin out |
| *.iopin vss |
| XM1 out A vss vss sky130_fd_pr__nfet_01v8 L=0.15 W=0.45 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29' |
| + pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W' |
| + sa=0 sb=0 sd=0 mult=1 m=1 |
| XM2 out B vss vss sky130_fd_pr__nfet_01v8 L=0.15 W=0.45 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29' |
| + pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W' |
| + sa=0 sb=0 sd=0 mult=1 m=1 |
| XM4 out B net1 vdd sky130_fd_pr__pfet_01v8 L=0.15 W=0.9 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29' |
| + pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W' |
| + sa=0 sb=0 sd=0 mult=1 m=1 |
| XM3 net1 A vdd vdd sky130_fd_pr__pfet_01v8 L=0.15 W=0.9 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29' |
| + pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W' |
| + sa=0 sb=0 sd=0 mult=1 m=1 |
| XM5 net2 B vdd vdd sky130_fd_pr__pfet_01v8 L=0.15 W=0.9 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29' |
| + pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W' |
| + sa=0 sb=0 sd=0 mult=1 m=1 |
| XM6 out A net2 vdd sky130_fd_pr__pfet_01v8 L=0.15 W=0.9 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29' |
| + pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W' |
| + sa=0 sb=0 sd=0 mult=1 m=1 |
| .ends |
| |
| .GLOBAL GND |
| ** flattened .save nodes |
| .end |
