Hello:
Now I have a project, which need to use CC8531 and CC2590 to transceiver wireless audio, and we use BQ25015 to manage battery charging and also output 3.3V to the system, we still need a CODEC(TLV320AIC3204) to process the audio input and output.
The problem is that when the CC8531 paired with other, the 3.3V waveform of DCDC output of BQ25015 as below:
And this will affect the power supply of our system, and this will so many noise of my audio input and output.
Our schematic and layout are all referenced TI’s demo.
Can you tell me what’s the possible reason of my system?
By the way, the parameter of CC2590 is 10uH and 10uF as this table.
Thanks a lot.
