How do I input an external clock signal into CC2530?

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How do I input an external clock signal into CC2530? [Copy link]

I plan to remove the original 32M crystal oscillator of CC2530 and use FPGA to generate a new 32M clock signal as the crystal oscillator. I want to use a coaxial cable to connect FPGA and CC2530. How can I input the external clock signal into CC2530? Thank you!

兰博

@dcexpert is an expert in this area, you can ask him

dcexpert

Most MCUs can use passive crystals as clock sources. When using an external clock, connect the clock signal to the clock input, and leave the output floating or even for other functions. However, you need to carefully check the chip data sheet to confirm to avoid problems caused by chip differences. In addition, the clock signal trace should not be too long.

chunyang

2530 has its own crystal oscillator. From the device manual, we can see that XOSC_Q1 is the oscillator input and the external clock signal can be connected to this pin.