High Clock Precision with TCXO

[mungewell]

Can you please confirm what XTAL you are using on this board, and what it's stability over temp is?

I have a project which requires a very precise clock and, although I appreciate that not everyone wants to pay for the higher precision, there is a 'hack' which can place a TCXO on the same footprint as the normal XTAL for just the cost of a couple of extra resistors....

Are you able to integrate this into your (future?) designs?

I am able to modify existing Pico boards, but looking for a design/supply with this already integrated.
mungewell/pico-timecode#4 (comment)

[arturo182]

Here's the datasheet of the XTAL used on the production units: https://www.lcsc.com/datasheet/lcsc_datasheet_2409292133_huaxindianzi-CM4012M00012001_C7294611.pdf

I think it's too late to modify this design and it is also quite space-limited for adding extra resistors, but I will consider if for future designs.

[mungewell]

Understood, thanks.
+/-10PPM with no compensation is, lets say, 'budget optimized' ;-)