This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
LMH0302SQE/NOPB - Differential output
Part Number: DS30BA101
Hello, I would like to use the DS30BA101 and DS30EA101 to transmit and receive 8b/10b encoded data over balanced 150 ohm cable differentially. The cable is about 4 meters long with several matched connectors inline. The data sheets only show 100 ohm differential cable and 75 ohm single ended coax cable applications. Can I set it up for 150 ohm differential termination and adjust Rvo for 800 mV p-p differentially and have equalization and data transmission work properly?
Thanks - philip
Hi Philip, DS30EA/BA101 supports 75-ohm single ended and 150-ohm differential. As you noted, you can fine tune RVO to get desired differential amplitude. However, I believe minimum single ended VOD is about 760mV so differential would be about 1.32V. You may need to use passive attenuator to get to 800mV differential. Could you please let me know the application and data rate? Regards,,nasser
We are glad that we were able to resolve this issue, and will now proceed to close this thread.
If you have further questions related to this thread, you may click "Ask a related question" below. The newly created question will be automatically linked to this question.
In reply to Nasser Mohammadi:
In reply to Philip Van Atta:
Hi Nasser. Can you suggest an attenuation network on the transmit side?
Hi Nasser. Do you know what the additive jitter for the DS30BA101 would be? Is it similar to what is documented in the LMH0302 data sheet?
thank you - philip
How can I determine the maximum additive jitter for the DS30BA101 and DS30EA101? I think we can use the 2 cases for 1.5 Gbps over RG59 and CAT6 cable for the equalizer as in the data sheet, if you have that information.
Thank you - philip.
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.