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Forum Post: AMC1304M25: Inquiry About AMC1304M25DW Common Mode Noise Improvement

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Part Number: AMC1304M25 Tool/software: Hello, I’m currently implementing a totem-pole PFC. We are experiencing frequent emulator down issues. It seems that switching noise is passing through the isolation layer of the AMC1304M25DW and affecting the DSP. When measuring pin 9 of the component with a scope in common mode, noise of ±600mV peak-to-peak is observed with a 100kHz cycle. Is there a way to improve the common mode noise?

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