xianweng
Member level 1
Hi ,everybody
When I used a crystal of nominal frequency at 49.152M and two capacitance with a chip to form the pierce oscillator,is oscillates at 16.3M. It is weird. Inverter and the bias resistor has already integrated in the chip. I used two different types of oscilloscope with different probes to measure,but the result is the same. And i changed the capacitance ,the result is also same.I also changed the crystal ,but the result is the same
The fundamental frequency of crystal is 49.152M
Could anybody help me figure it out?Thanks any help in advance
When I used a crystal of nominal frequency at 49.152M and two capacitance with a chip to form the pierce oscillator,is oscillates at 16.3M. It is weird. Inverter and the bias resistor has already integrated in the chip. I used two different types of oscilloscope with different probes to measure,but the result is the same. And i changed the capacitance ,the result is also same.I also changed the crystal ,but the result is the same
The fundamental frequency of crystal is 49.152M
Could anybody help me figure it out?Thanks any help in advance
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