AMC1311-Q1: AMC1311 EMC issues

hu xianke

Part Number: AMC1311-Q1
Other Parts Discussed in Thread: AMC1311

AMC1311 EMC issues:

We find EMC RE issues when only enable TI-AMC 1311, and the noise gap is 30Mhz(200-900Mhz), please help me

Confirm this oscillator frequency and do we have some solution advise or lesson learn?

0 hu xianke 6 months ago

0 Alexander Smith 6 months ago in reply to hu xianke

Hi Hu,

The internal data transmission frequency is 480MHz as described in section 8.3.2 Isolation Channel Signal Transmission.

This looks like a very strict radiated emissions mask level. Can you please clarify what the different colors in the picture correspond to?

I assume blue/green are peak/quasi-peak/average?

What about the three different mask level colors?

We have these two documents for radiated emissions performance with our devices.

How old is the AMC1311 device that you are working with?

Can you share the layout?

0 hu xianke 6 months ago in reply to Alexander Smith

can you give me your email and i will send you a teams link ,let us have a meeting with our ECAD?

0 Alexander Smith 6 months ago in reply to hu xianke

Hi Hu,

I will contact you offline.

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