Other Parts Discussed in Thread: LAUNCHXL-CC2640R2, CC2640
I am using this part to develop a circuit that is supposed to work at 105 degree C as maximum operation temperature. My design is started with the LAUNCHXL-CC2640R2 launch pad as the reference design. However, the 32-kHz crystal oscillator, FC-135 32.7680KA-AG0, seems inappropriate, because its maximum operation temperature is 85 degree C. I found some high temperature crystal oscillators, such as FMI 32.768kHZ. It has 4 pins: 1- output enable, 2- case ground, 3- output, 4- supply voltage. Please advise me which pin is to connect X32K_Q1, which to X32K_Q2, and do I need to connect Pin 4 of the oscillator to the supply voltage? Thanks for your attention!
