CC2640R2F IC Bluetooth module application, in the circuit to remove 32.768 KHz crystal oscillator, Change to use IC internal RC oscillator,( Our problem: Use IC internal RC oscillator, When the module temperature changed to fast, The module broadcast was abnormality, Cause mobile phone can’t receive module broadcast signal.) Here are three questions, Please reply:
1. What is the 32.768 KHz oscillator frequency accuracy of CC2640R2F internal RC oscillator?
2. The 32.768 KHz RC oscillator accuracy can be modified? How to correct?
3. The temperature change caused by the 32.768 KHz oscillation frequency deviation can be modified? How to correct?
4. If a rapid temperature change (1 ℃ variation of time faster than 1 second), can maintain normal radio broadcast signals sent out? If not, how to ensure a normal radio broadcast signals to transmit?
Thanks a lot!
