
Quartz Crystal Oscillator
Gideon Analytical Laboratories received one failed surface mount device (SMD) 200 ECSH quartz crystal oscillator and a good SMD 200 ECSH for comparison. A crystal oscillator uses the mechanical resonance of a vibrating crystal of piezoelectric material to create an electrical signal with a very precise frequency, such as a quartz crystal. This frequency is commonly used to keep track of time, to provide a stable and repeatable clock signal for digital ICs, and to stabilize frequencies.