In Cadence Virtuoso, you can use the beneficiary pwl files: cdma_2ms_idata.pwl and cdma_2ms_qdata.pwlCould anyone please tell me the specs of the related CDMA, especifically it frequency per channel
Thanks a lot, in advancePoltekniko
How the files are generated are briefly discussed here (http://support.cadence.com/wps/mypoc/cos?uri=deeplinkmin:DocumentViewer;src=pubs;q=/spectreRFTheory/spectreRFTheory13.1/chap2.html )
The files are listed as cdma_2ms_idata and cdma_2ms_qdata . The stored signals
were created with the CDMA signal generator, which is also in the rfLib library located in the Cadence IC 6.1.5 and 6.1.6 hierarchies. Note that these are sample files and they were created a number of years ago.
For actual CDMA specs, I recommend searching the web. There is are multiple CDMA "standards" for lack of a better term.
Here is some basic info from a postgrad course in communications: http://www.comlab.hut.fi/opetus/333/2004_2005_slides/CDMA.pdf
Thanks a lot for your informative reply.Actually, to test my Envelope Modulator (related to Envelope Tracking Power Amplifier) I need high PAPR signals. CDMA (the pwl files we are talking about) I think its PAPR is around 3.5 dB. I should say that these pwls file have been really helpful to me. My question is that, is there any way to generate signals with higher PAPRs (e.g. LTE)?
Thanks a lot,
We have a new wireless analysis in MMSIM13.1 and IC616 (use the latest hotfix of each). This is under the envlp analysis in ADE. You place a component from rfLib - there's a source for lte, and you place a wprobe at the output.
That may do what you want. Consult the SpectreRF documentation in MMSIM13.1 for more details. There's examples in <MMSIMinstDir>/tools/dfII/examples/SpectreRF_workshop/rfworkshop.tar.Z too.