Hi, I usually work on the firmware side of things when it comes to microcontrollers, but I have a question about the hardware side. I am searching for the absolute smallest components I can find for a custom board, and a 48MHz crystal is relatively large compared to other components. I found a 20MHz oscillator (SIT8021AC-J4-18S-24.000000E SiTime | Crystals, Oscillators, Resonators |) that is much smaller than 48MHz options. Would it be possible to use a 20MHz clock instead of the 48MHz oscillator in the reference schematic? I’m also looking for as minimal power consumption as possible, so perhaps a lower frequency clock source would help with this as well.
I only want one crystal on my board, which I know will be alright if i use a 48MHz crystal. Any help or insights on using a 20MHz crystal instead would be greatly appreciated, thanks!