Hi Team,
Can you give me advise on EMI issue related to SN65LVDT2.
When 12 MHz LVDS signal drives SN65LVDT2, it emits EMI noise
up to several Giga Hertz harmonic noise.
When two 5 pF caps are put between Input A and GND as well as Input B and GND,
the harmonic noise decreased a lot.
When two 10 pF caps are put on TX+ and GND as well as TX- and GND, the harmonic noise
was not reduces at all.
So, I suspect that harmonic noise may be generated inside the SN65LVDT2.
Q1. Do you think are there any circuit block which generate such harmonic noise?
Q2. Can you advise me, why the two 5 pF caps reduce such harmonic noise so effectively?
I have PCB layout, diagrams, however I do not want to open it in public
Can you give me e-mail address for further communication.
(My e-mail address : tsukui-y@clv.macnica.co.jp)
Best Regards,
Yusuke / Japan Disty
