- #1
Idea04
- 194
- 1
when reading about the main differences between crystal resonators, oscillators and filters there's not much difference in operation, except that filters seem to have the crystal resonators and capacitors and resistors, And resonators seem to oscillate when the proper frequency is applied, And oscillators oscillate when a voltage is applied but also have amplifiers and feedbacks to the crystal. So my main question is why do you need a crystal filter with capacitors to properly filter when you can use a quartz resonator to filter to the specific frequency? Is it for the narrow bandwidth?