hsim simulate pll help

[jerryhuang]

hsimanalog

how to use hsim to define the hsim parameter for subcircuits or instance,I use the hsimparameter ,but seem that the simulation result is not right,anybody konw how can help me ? thanks

 

[jerryhuang]

simulate pll

when I use the hsim to simulate the analog part of my pll barely,the result is right,but with the same hsim parameters ,use hsim to simulate the whole pll,
the output of the analog part is wrong,i don't know why ,my question is how to use hsim to simlate a pll,how to define the hsim parameters to simulate the mix circuit pll

 

[bastos4321]

define parameter subckt hsim

Use this example

*** Analog blocks
.hsimparam subckt=caparray hsimanalog=3
.hsimparam subckt=caparray hsimalloweddv=0.1
.hsimparam subckt=caparray hsimspice=3

*** Digital blocks
.hsimparam subckt=afeprog hsimanalog=0


Bastos

 

[jerryhuang]

hsim hsimparam

thanks,bastos4321
I use a ideal vco(descript by verilog_a) in my pll,but the out of the vco have much noise when I use hsim simulate the pll.but if I use spectre ,the out of the vco is very good.The hsim parameter I set on the verilog_a vco is ,for example
hsimparameter subckt=vco hsimanalog=2,is that ok?