Hi Rauf,

Forget the third lead. Sometimes they manufacture it with two side caps with centre lead common to ground.

Just don't use this third lead and use external 30 to 50 pF caps at the two side leads like you do with crystals.

Anyway, my questions are,

1. how much these side caps affect the accuracy.

2. how much changing the PCB layout affect the accuracy keeping the schematic same.


Simon