Why On-die Termination (ODT) and Its Calibration for the Trimming Accuracy in A SerDes?
Рет қаралды 3,000
Күн бұрын
@sunkarasaigoutham Жыл бұрын
the point about external termination causing reflections due to unterminated stub is very useful. thank you.
@circuitimage Жыл бұрын
Hi Sai, welcome back, and thanks for your feedback. You're very welcome.
@ZanZ-qi6wz Жыл бұрын
Thank you for explaining it.
@circuitimage Жыл бұрын
Hi Zan, nice to meet you. You're very welcome. 😀
@kehan4895 Жыл бұрын
great tutorials! i love them all. Can you give a talk about duty cycle correct (DCC) when you get a chance? Thanks!
@circuitimage Жыл бұрын
Hi Kehan, nice to meet you. Thank you for your feedback and good suggestion. I'll take your advice on making DCC for you later. 😀
@johnnywu8696 Жыл бұрын
Thanks for sharing a high quality High speed Serdes knowledge, Is it possible to share presentation slide for all series? Thanks.
@circuitimage Жыл бұрын
@johnny wu Thanks for the feedback. I'm sorry that's not available and I'm thinking what we could do later. :)
@selvakumar5421 8 ай бұрын
Great job
@circuitimage 8 ай бұрын
Hi Selva, nice to meet you. Thank you so much for your feedback and I'm glad you liked it.
@selvakumar5421 8 ай бұрын
I'm using ATSAM 5D27 processor and it doesn't support odt, and in my design I'm using DDR3L, what resistor value have to implement in ODT pin of DDR3L chip, to reduce SI irrue. In layout I'm using T topology for routing
@abhiruplahiri1 Жыл бұрын
Good to calibrate the ODT for a good s11 and low reflection, however adding more calibration legs with switches could add more capacitance leading to bandwidth drop. Not sure, if there are serdes applications you know of which do not calibrate the internal resistor?
@circuitimage Жыл бұрын
Hi Abhirup, that's a good question. Correct. There are a few SerDes applications that does not require to calibrate the internal resistor; for example, the recent popular die-to-die interface would be a good example. 😃
@abhiruplahiri1 Жыл бұрын
@@circuitimage thanks for the input CC!
@circuitimage Жыл бұрын
☺️ You are very welcome 🤗
@circuitimage Жыл бұрын
@@abhiruplahiri1 You're very welcome. :)😀
@user-qy8oq7jn5g Жыл бұрын
Why die to die interface is not need a odt calibration? The reason is die to die interface isn't big loss rater than other interface? Sorry I'm not good english
@RSP13 11 ай бұрын
Thanks for speaking slowly
@circuitimage 11 ай бұрын
Hi RSP, nice to meet you and thank you so much for your feedback. I hope that helped. 😀
Skitsville
Рет қаралды 17 МЛН
ALL ABOUT ELECTRONICS
Рет қаралды 206 М.
Microchip Technology
Рет қаралды 19 М.