Hello, I'm not sure if this is OK or not:
I'm using PIC18F2450, and there's a xtal at Timer1. The amplitude at Timer1 input is typically 800mV, and at it worst case(temp change) can be at 500mV. Is this normal? Although it still can function properly, but I just worry this low amplitude, wouldn't it much more susceptible to noise or something like ESD? Anyway to increase? Change IC?
Normally, an oscillator circuit is check on load capacitance, start up timing, drive level, oscillator margin(-ve rst), right? Did i miss out anyth else?
I'm using PIC18F2450, and there's a xtal at Timer1. The amplitude at Timer1 input is typically 800mV, and at it worst case(temp change) can be at 500mV. Is this normal? Although it still can function properly, but I just worry this low amplitude, wouldn't it much more susceptible to noise or something like ESD? Anyway to increase? Change IC?
Normally, an oscillator circuit is check on load capacitance, start up timing, drive level, oscillator margin(-ve rst), right? Did i miss out anyth else?