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AMC0300D: Wifi module noise interference on AMC0300D

Evan Peng
Intellectual 1575 points

Part Number: AMC0300D

Dear expert,

This is China DCP FAE Evan. My cutomer Anker is evaluating AMC0300D in their new PPS project. Their is a 2.4GHz Wifi module on their board, and placed close to AMC0300D. We find if the wifi module is working, the sampling result of AMC0300D will be severly affected. I suppose the noise maybe coupled from 2 path

  1. Wifi module to INP-INN, affect the INP-INN voltage
  2. Wifi module RF noise affect AMC0300D internal circuit

image.png

We need your experience and professionality on the 2 items below.

  1. Can you please help to provide your insight regarding this issues?
  2. Customer is going to add Ferrite on the red circle place, do you think it will help?

BR,

Evan.