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how to connect an external voltage reference to CC2640

Gerry Lee
Intellectual 315 points
Other Parts Discussed in Thread: CC2640

Hi ,

I found the Vref of CC2640 is not stable, even more when the chip temperature changed, so, I had to replace internal voltage reference to external voltage reference. But, my question is what pin of CC2640 should the external voltage be connected to?  thanks a lot!

Best Regards!

Gerry