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BQ25601: Noise on sys while charging

Part Number: BQ25601

Hi team,

We used BQ25601 for a GSM device that has also RF ASK module receiver to communicate with other devices. the receiver range is good on battery, but as we connect the charger, the range of RF receiver decreases significantly. we discovered that there is a noise on input and output of BQ25601 IC. So we changed the charger but the problem is still present.

Input AC Noise as folows:

Output AC Noise a follows:

the schematic of our design is as follows:

also we used the PCB layout of datasheet.

Please guide us where the problem could be?

Thanks.