liletian wrote on Apr 16^th, 2009, 10:43am:

If you use Cadence Spectre or Agilent GoldenGate, use "analogLib/vpwlf".
If you use Agilent ADS(RFDE), use "adsLib/VtDataset" or "adsLib/VtUserDef with adsLib/DataAccessComponent".

If you want to implement this source using Verilog-A, use $table_model() system function.
http://edocs.soco.agilent.com/display/ads2009/System+Tasks+and+IO+Functions

liletian wrote on Apr 16^th, 2009, 10:43am:
Design comparator and use it as Data Slicer.

liletian wrote on Apr 17^th, 2009, 9:20am:
In Agilent ADS(RFDE), you can't use "analogLib/vpwlf".
Instead you have to use "adsLib/VtDataset" or "adsLib/VtUserDef with adsLib/DataAccessComponent".

If you want to use "adsLib/VtDataset", dataset must be ADS's Dataset, that is, "*.ds" file which is binary.
In your case, Dataset is "osci_mixer_new_bak.ds". Expression is "OUT".

If you use "adsLib/VtUserDef with adsLib/DataAccessComponent", you can use ascii file as datafile which can be shared with "analogLib/vpwlf". Usually I use ascii file of Generic MDIF style for this purpose.

http://edocs.soco.agilent.com/display/ads2009/VtDataset+%28Voltage+Source%2C+Tim...

http://edocs.soco.agilent.com/display/ads2009/VtUserDef+%28Voltage+Source%2C+Use...
http://edocs.soco.agilent.com/display/ads2009/DataAccessComponent+%28Data+Access...

liletian wrote on Apr 17^th, 2009, 9:20am:
See http://www.maxim-ic.com/appnotes.cfm?an_pk=3671

For $table_model() system function of Verilog-A, what error did you encounter ?
Did you specify $abstime as "table_inputs" of $table_model() ?

Most simple use of $table_model to define a source, in this case a pulse:

`include "disciplines.vams"

module src(p,n);
   electrical p,n;
   analog V(p,n) <+ $table_model($abstime, {1,2,3,4,5}, {0,0,1,1,0}, "1CC");
endmodule

Time is used as the lookup variable with the (x,y) data defined using arrays (you'll probably use a file). On the control string, 1 => linear interpolation, "CC" - constant extrapolation both ends.

Patrick