I am picking up a 444.4 Hz square wave being radiated by the headset dev card in nearby audio equipment (electric guitar pickups). After probing around the card I have found that there is a 50% and 11% duty cycle 444.4 Hz square wave coming from XLNAEN and XPAEN pins on the CC8531, and another 11% duty cycle from the antenna pin on the CC2590.
Is there any way to reduce this radiation without affecting functionality? I have attached oscilloscope shots from probing the pins on the cc8531.
