Bomar Crystal is able to offer two ultra low tolerance surface mount (smd) Oven Controlled Crystal Oscillators. OCXOs are used for applications where frequency tolerance and stability are critical like Satellite Radios, Sonet Clocks, Synthesizers, Instrumentation and Base Stations. Frequency stability to ±10ppb with low phase noise is available.
Features
| Output Wave Form | HCMOS | |
| Frequency Range | 5.000 MHz - 40.000 MHz | |
| Standard Frequencies (partial list) | 10.000, 12.800, 16.384, 19.200, 20.000, 25.000 MHz | |
| Type of Crystal Cut | AT-cut | |
| Supply Voltage | 3.3Vdc or 5.0Vdc | |
| Power Consumption | 2.0W max. - warm up 0.7W max. - steady state | |
| Initial Frequency Accuracy (at +25oC) | ±0.5ppm with EFC set at center of control voltage | |
| Frequency Stability | vs Operating Temperature Range (referenced to +25oC.) | ±10ppb over 0oC. to +50oC. ±20ppb over -20oC. to +70oC. ±30ppb over -40oC. to +85oC. Custom spec. on request |
| vs Aging / day | ±2.0ppb max. | |
| vs Aging / year | ±0.4ppm max. | |
| vs Aging / 10 years | ±2.0ppm max. | |
| vs 5% Supply Voltage Change | ±5ppb max. | |
| vs 5% Load Change | ±20 ppb max. | |
| Electronic Frequency Control Pin 1 |
Tuning Range | ±5 ppm min. |
| Control Voltage Range | 3.3V(0-3.3V) or 5.0V(0-5.0V) | |
| Linearity | ±10% | |
| Transfer Function | Positive | |
| Warm up time (at +25oC.) | ±0.2ppm, 3 min. max. | |
| HCMOS Output | VOH:Logic High "1" | 2.4V min. |
| VOL:Logic Low "0" | 0.4V max. | |
| Duty Cycle | 45% to 55% | |
| Load | 15 pF | |
| Spurious | -60dBc max. | |
| Phase Noise | ||
| 10Hz | -90dBc/Hz | |
| 100Hz | -115dBc/Hz | |
| 1kHz | -135dBc/Hz | |
| 10kHz | -145dBc/Hz | |
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