Which crystal oscillator?

[elektronika-ba]

Hello,

I can't find the part number for the crystal oscillators used for SX1255 and SX1257. Can you tell me which one you used in the design?

The datasheet of SX125x IC states that it must be 1.8V peek to peek sinewave. Adding capacitor in series might solve this, however the maximum voltage would still be 3.3V relative to GND. Don't know if this is OK or I am missing something.

Thanks