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You use the same package as the majority of your other low power components.If 10pF chip capacitor is required, for 8 MHz crystal, then which is the suitable package 0402, 0603, 0805 or 1206?
What is the selection criteria for package selection?
Is it the only cost saving by using lower package? Or any technical reason?You use the same package as the majority of your other low power components.
Today that is probably 0402 or 0603.
I did not understand what you want to say?The "load" capacitors are really the circulating
AC current loop of the xtal "tank", by way of
ground. Stray C which takes energy elsewhere
should be minimized. C which can be "lumped"
with the placed component, is just that.
Package pin capacitance numbers are often
inclusive of protection and active circuitry
attached, often sandbagged rather than
dead-accurate, and XO pins often are special
in these respects - single stage and smaller
than output-buffer inverter, lighter ESD
protection, etc.
Yes, it will oscillate by any package, but load capacitors in pF are available in 0402 to 1206. I am able to manufacture with any package, so how to choose package that can give me technical justification.Your requirements for manufacturability are unstated. Use any package size you want. It will still oscillate.
Next question?
Use any package size you want.
You use the same package as the majority of your other low power components.
Today that is probably 0402 or 0603.
You must learn how costs are affected by volume, component size,, material, handling , automation NRE costs, prototype costs, respin design costs, low volume costs and high volume..Yes, it will oscillate by any package, but load capacitors in pF are available in 0402 to 1206. I am able to manufacture with any package, so how to choose package that can give me technical justification.