• Skip to main content
  • Skip to search
  • Skip to footer
Cadence Home
  • This search text may be transcribed, used, stored, or accessed by our third-party service providers per our Cookie Policy and Privacy Policy.

  1. Community Forums
  2. RF Design
  3. How add a specific phase noise shape to a LO input wave...

Stats

  • Locked Locked
  • Replies 2
  • Subscribers 63
  • Views 13770
  • 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 add a specific phase noise shape to a LO input waveform

RFStuff
RFStuff over 10 years ago

Dear All,

I want to add a specific phasenoise shape to my LO input waveform ( which will drive my designed circuit ).

Could anybody please tell how that can be done ?

Kind Regards,

  • Cancel
Parents
  • Andrew Beckett
    Andrew Beckett over 10 years ago

    You can use the "Noise type" field in the "Display noise parameters" section of the properties for port or vsource to do this. The Noise Type can be either Noise Voltage or SSB Phase Noise (the units are listed too) which means you can enter frequency-dBc pairs for the source.

    Note that this only works in pnoise/hbnoise analyses though.

    Can't remember exactly when this was introduced - the simulator supported it from MMSIM13.1 and I think it was IC616 (maybe an early ISR) for the UI on the vsource/port.

    Regards,

    Andrew.

    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
Reply
  • Andrew Beckett
    Andrew Beckett over 10 years ago

    You can use the "Noise type" field in the "Display noise parameters" section of the properties for port or vsource to do this. The Noise Type can be either Noise Voltage or SSB Phase Noise (the units are listed too) which means you can enter frequency-dBc pairs for the source.

    Note that this only works in pnoise/hbnoise analyses though.

    Can't remember exactly when this was introduced - the simulator supported it from MMSIM13.1 and I think it was IC616 (maybe an early ISR) for the UI on the vsource/port.

    Regards,

    Andrew.

    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
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.

© 2025 Cadence Design Systems, Inc. All Rights Reserved.

  • Terms of Use
  • Privacy
  • Cookie Policy
  • US Trademarks
  • Do Not Sell or Share My Personal Information