We're developping a battery-powered board based on the QCA4010.
We are using the balun suggested by Qualcomm:
However, some of these baluns develop a leakage current of 3-4mA after some ageing. This problem is recognized by the manufacturer but it does not seem like it will be solved soon.
- Are there any alternative baluns known (apart from the implementation in discrete components)?
- We're also looking to power off the balun with a FET when not needed; are there signals available on a QCA4010 pin that can be used to drive such a FET?
- Are there API functions available to monitor the Wifi status, so we can easily drive an IO pin for the same purpose?