Stats

  • Locked Locked
  • Replies 4
  • Subscribers 65
  • Views 24925
  • Members are here 0
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

How PORT in analogLIb of Spectre Works

RFStuff

Dear All,

I want to know the inside netlist of the port  present in analogLib ( the exact way it evaluates the signal ).

Can anybody please tell where I can gest this information from ?

Kind Regards,

Parents

  • It's just a voltage source which generates twice the level of signal that you specify, in series with a resistor (the value of which you specify, but defaults to 50Ohms). This is if you specify the signal level as a voltage rather than a power - and so if the circuit to which the port is connected is matched to the impedance, the voltage at the pin of the port should be what you specify.

    Because there's a resistor inside, you can also specify the output as a power (in dBm). The resistor also serves as a noise source for measuring noise figure in the various noise analyses.

    This is covered in "spectre -h port" (I think - I don't have access to the software right now) and also in the Spectre Simulator Components and Device Models Reference manual in the MMSIM documentation.

    There's also the documentation for analogLib (in the IC documentation)

    Regards,

    Andrew.

  • in reply to Andrew Beckett

    Hi Andrew,

    Thanks for this helpful reply.

    Appreciate

Reply Children
No Data

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.