Quartz Crystal / Oscillator
Type of cut crystal
Mode of vibration vs. Frequency range
| Crystal Cut | Mode of vibration | Frequency range (kHz) | Capacitance ratio (C0/C1) |
|
|---|---|---|---|---|
| AT | Thickness shear Fundamental |  |
800~5,000 2,000~80,000 |
450~300 220 |
| 3rd overtone |  |
20,000~90,000 | n2 x 250 n: Overtone order |
|
| 5rd overtone | 40,000~150,000 | |||
| 7rd overtone | 70,000~210,000 | |||
| BT | Thickness shear Fundamental | Thickness shear Fundamental | 3,000~30,000 | 650 |
| XY | Flexural (Tuning fork) |  |
16~150 | 425~800 |
| Extensional |  |
600~3,000 | 400 | |
| DT | Face shear |  |
100~500 | 400 |
| CT | 150~850 | 350 | ||
| SL | 180~700 | 400 | ||
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