High Fundamental Low Jitter Temperature Stable Quartz Resonators

OPAW Resonators - Orthogonal Plate Acoustic Waves

Unlike Surface Acoustic Waves, OPAW’s are a type of bulk wave combining longitudinal waves, P waves, and transverse waves, SV waves, through a quartz substrate with an IDT pattern on top. This allows for high fundamental frequencies, excellent stability over temperature and extremely low jitter. Fundamental frequencies are available from 400 MHz to 1 GHz.

Extremely Low Jitter

OPAW resonators are the key to producing state of the art, low jitter oscillators, with jitter as low as 3.8 femtoseconds at 640 MHz without using PLL’s or multipliers. Because the fundamental frequency is the same as the output frequency, subharmonics do not exist and harmonics are readily filtered because they are so far out of band.

Excellent Temperature Stability

The stability of the OPAW resonator over temperature is significantly better than an AT-Cut crystal. The curve is ‘well-behaved’ it can further tightened over temperature using conventional TCXO techniques.