diff options
Diffstat (limited to 'Windows/spice/examples/xspice/pll/pll-xspice.cir')
| -rw-r--r-- | Windows/spice/examples/xspice/pll/pll-xspice.cir | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/Windows/spice/examples/xspice/pll/pll-xspice.cir b/Windows/spice/examples/xspice/pll/pll-xspice.cir new file mode 100644 index 00000000..1d14368d --- /dev/null +++ b/Windows/spice/examples/xspice/pll/pll-xspice.cir @@ -0,0 +1,144 @@ +* pll circuit using xspice code models +* output frequency 400 MHz +* locked to a 1 or 10 MHz reference + +.param vcc=3.3 +.param divisor=40 +.param fref=10e6 +.csparam simtime=25u + +.global d_d0 d_d1 + +vdd dd 0 dc 'vcc' +*vco cont 0 dc 1.9 + +*PULSE(V1 V2 TD TR TF PW PER) +* reference frequency selected by param fref +* PULSE(V1 V2 TD TR TF PW PER) +vref ref 0 dc 0 pulse(0 'vcc' 10n 1n 1n '1/fref/2' '1/fref') +abridgeref [ref] [d_ref] adc_vbuf +.model adc_vbuf adc_bridge(in_low = 0.5 in_high = 0.5) + +*digital zero +vzero z 0 dc 0 +abridgev3 [z] [d_d0] adc_vbuf +.model adc_vbuf adc_bridge(in_low = 'vcc*0.5' in_high = 'vcc*0.5') +*digital one +ainv1 d_d0 d_d1 invd1 +.model invd1 d_inverter(rise_delay = 1e-10 fall_delay = 1e-10) + +* vco +* buf: analog out +* d_digout: digital out +* cont: analog control voltage +* dd: analog supply voltage +*.include vco_sub.cir +*xvco buf d_digout cont dd ro_vco +.include vco_sub_new.cir +xvco buf d_digout cont dd d_osc_vco + +* digital divider +adiv1 d_digout d_divout divider +.model divider d_fdiv(div_factor = 'divisor' high_cycles = 'divisor/2' ++ i_count = 4 rise_delay = 1e-10 ++ fall_delay = 1e-10) + +* frequency phase detector +.include f-p-det-d-sub.cir +Xfpdet d_divout d_ref d_U d_Un d_D d_Dn f-p-det + +* loop filters +*2nd or 3rd order, transistors as switches +.include loop-filter-2.cir +Xlf d_Un d_D cont loopf +* 2nd order, Exxxx voltage controlled current sources as 'switches' +* loop filter current sources as charge pump +*.include loop-filter.cir +*Xlf d_U d_D cont loopfe + +* d to a for plotting +abridge-w1 [d_divout d_ref d_Un d_D] [s1 s2 u1n d1] dac1 ; change to d_u or d_Un +.model dac1 dac_bridge(out_low = 0 out_high = 1 out_undef = 0.5 ++ input_load = 5.0e-12 t_rise = 1e-10 ++ t_fall = 1e-10) + +.control +save cont s1 s2 u1n d1 v.xlf.vdd#branch; to save memory +iplot cont +tran 0.1n $&simtime uic +rusage +plot cont s1 s2+1.2 u1n+2.4 d1+3.6 xlimit 4u 5u +plot v.xlf.vdd#branch xlimit 4u 5u ylimit -8m 2m +*plot cont +.endc + +*model = bsim3v3 +*Berkeley Spice Compatibility +* Lmin= .35 Lmax= 20 Wmin= .6 Wmax= 20 +.model N1 NMOS +*+version = 3.2.4 ++version = 3.3.0 ++Level= 8 ++Tnom=27.0 ++Nch= 2.498E+17 Tox=9E-09 Xj=1.00000E-07 ++Lint=9.36e-8 Wint=1.47e-7 ++Vth0= .6322 K1= .756 K2= -3.83e-2 K3= -2.612 ++Dvt0= 2.812 Dvt1= 0.462 Dvt2=-9.17e-2 ++Nlx= 3.52291E-08 W0= 1.163e-6 ++K3b= 2.233 ++Vsat= 86301.58 Ua= 6.47e-9 Ub= 4.23e-18 Uc=-4.706281E-11 ++Rdsw= 650 U0= 388.3203 wr=1 ++A0= .3496967 Ags=.1 B0=0.546 B1= 1 ++ Dwg = -6.0E-09 Dwb = -3.56E-09 Prwb = -.213 ++Keta=-3.605872E-02 A1= 2.778747E-02 A2= .9 ++Voff=-6.735529E-02 NFactor= 1.139926 Cit= 1.622527E-04 ++Cdsc=-2.147181E-05 ++Cdscb= 0 Dvt0w = 0 Dvt1w = 0 Dvt2w = 0 ++ Cdscd = 0 Prwg = 0 ++Eta0= 1.0281729E-02 Etab=-5.042203E-03 ++Dsub= .31871233 ++Pclm= 1.114846 Pdiblc1= 2.45357E-03 Pdiblc2= 6.406289E-03 ++Drout= .31871233 Pscbe1= 5000000 Pscbe2= 5E-09 Pdiblcb = -.234 ++Pvag= 0 delta=0.01 ++ Wl = 0 Ww = -1.420242E-09 Wwl = 0 ++ Wln = 0 Wwn = .2613948 Ll = 1.300902E-10 ++ Lw = 0 Lwl = 0 Lln = .316394 ++ Lwn = 0 ++kt1=-.3 kt2=-.051 ++At= 22400 ++Ute=-1.48 ++Ua1= 3.31E-10 Ub1= 2.61E-19 Uc1= -3.42e-10 ++Kt1l=0 Prt=764.3 + +.model P1 PMOS +*+version = 3.2.4 ++version = 3.3.0 ++Level= 8 ++Tnom=27.0 ++Nch= 3.533024E+17 Tox=9E-09 Xj=1.00000E-07 ++Lint=6.23e-8 Wint=1.22e-7 ++Vth0=-.6732829 K1= .8362093 K2=-8.606622E-02 K3= 1.82 ++Dvt0= 1.903801 Dvt1= .5333922 Dvt2=-.1862677 ++Nlx= 1.28e-8 W0= 2.1e-6 ++K3b= -0.24 Prwg=-0.001 Prwb=-0.323 ++Vsat= 103503.2 Ua= 1.39995E-09 Ub= 1.e-19 Uc=-2.73e-11 ++ Rdsw= 460 U0= 138.7609 ++A0= .4716551 Ags=0.12 ++Keta=-1.871516E-03 A1= .3417965 A2= 0.83 ++Voff=-.074182 NFactor= 1.54389 Cit=-1.015667E-03 ++Cdsc= 8.937517E-04 ++Cdscb= 1.45e-4 Cdscd=1.04e-4 ++ Dvt0w=0.232 Dvt1w=4.5e6 Dvt2w=-0.0023 ++Eta0= 6.024776E-02 Etab=-4.64593E-03 ++Dsub= .23222404 ++Pclm= .989 Pdiblc1= 2.07418E-02 Pdiblc2= 1.33813E-3 ++Drout= .3222404 Pscbe1= 118000 Pscbe2= 1E-09 ++Pvag= 0 ++kt1= -0.25 kt2= -0.032 prt=64.5 ++At= 33000 ++Ute= -1.5 ++Ua1= 4.312e-9 Ub1= 6.65e-19 Uc1= 0 ++Kt1l=0 + + +.end |