Author Topic: Temperature sensor TC1047A RF susceptibility  (Read 175 times)

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Offline AndersJTopic starter

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Temperature sensor TC1047A RF susceptibility
« on: November 07, 2024, 01:44:39 am »
I have a Microchip TC1047A, analog out, SOT23 temperature sensor.
It fails radiated immunity tests at 430 and 150 MHz, and other frequencies.

I have decoupled and filtered it in every possible way.
The only working fix is to shield it.

I have replaced the sensor with two resistors that generate a suitable output.
The susceptibility goes away, so I believe the sensor is RF-sensitive.

Any thoughts?
« Last Edit: November 07, 2024, 01:49:59 am by AndersJ »
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