overtone crystal

overtone crystal

[′ō·vər‚tōn ‚krist·əl]
(electronics)
Quartz crystal cut in such a manner that it will operate at a higher order than its fundamental frequency, or operate at two frequencies simultaneously as in a synthesizer.
References in periodicals archive ?
The oscillator provides a lifetime stability of [+ or -]25 ppm for all conditions over -40 [degrees]C to +85 [degrees]C and touts an RMS jitter of <1 ps (12 kHz to 20 MHz) by using a 3rd overtone crystal design.
Notes on the Driscoll VHF Overtone Crystal Oscillator and a New Low-Noise VHF Crystal Oscillator Topology," http://www.
In our testing of the same production 6G SAS HBA design with both the DSC1122 Silicon MEMS oscillator and a 3rd overtone crystal oscillator, we found that the use of the DSC1122 resulted in equivalent system performance with a bit lower measured transmitter random jitter and total jitter," said Mike Engbretson, Chief Technology Engineer of Granite River Labs.
25 MHz to 170 MHz, this was accomplished two ways, the least expensive of which was using a third overtone crystal.
These solutions provide a strong alternative to expensive and inflexible SAW oscillators and overtone crystal oscillators.