Stats

Locked Locked
Replies 2
Subscribers 125
Views 2088
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

PAM4 eye diagrams in Cadence

TUKA 6 months ago

Dear all,

I have designed a Transimpedance amplifier (TIA) and would like to check the data rate (say 25 GBps or 50 GBps) using eye diagram simulations.

With a transient analysis, I have observed the output voltage signal and did the following in the waveform window:

Measurements -> Eye Diagram

I have set the start and stop time respectively as 0 and length of transient simulation. For the unit interval, I gave half of RMS frequency of this output voltage signal.

I am only able to plot the eye diagram for NRZ (2 levels) only.

Could you please let me know how to plot the eye diagram for PAM-4 modulation scheme? Further what are the settings required?

Also, after plotting the eye diagram, how to measure the data rate?

Regards,

Tuka

Parents

Ashish Patni 6 months ago

Hi Tuka,

Please refer to the following RAK and see if this helps:

Article (20511328) Title: ViVA Eye Diagram: NRZ, PAM3 and PAM4
URL: https://support.cadence.com/apex/ArticleAttachmentPortal?id=a1O3w000009mCuWEAU

With Regards,

Ashish
Cancel
Vote Up 0 Vote Down

Cancel
TUKA 6 months ago in reply to Ashish Patni

Dear Ashish Patni,

Thanks for the link to the article.

Tuka
Cancel
Vote Up 0 Vote Down

Cancel

Reply

TUKA 6 months ago in reply to Ashish Patni

Dear Ashish Patni,

Thanks for the link to the article.

Tuka
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.