| OCXO 91 SERIES | |
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The OCXO 91 series oscillators are precision frequency reference standards that can be used in a variety of applications such as GPS clocks, cellular and paging base station transmitters, and other cellular applications, including GSM, CMDA, and TDMA. These oscillators are designed to meet tight frequency stability specifications over a wide operating temperature range. A choice of quartz resonators offers the end user a price / performance option to suit their particular application. The package style is a hermetically sealed metal enclosure with glass to metal terminals for PCB mounting. |
| Specification Table | |||
| Parameter / Model | OCXO 91-2 | OCXO 91-3 | OCXO 91-4 |
| Frequency | 10.000000 MHz | ||
| R.F. Output | Sine wave +10 +/- 1 dBm into 50 ohms Harmonics < - 30 dBc |
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| Change in frequency versus .. | |||
| Temperature (Ambient) (-30°C .. +70°C) Referenced to +25°C |
< +/- 2 PPB | < +/- 5 PPB | < +/- 10 PPB |
| Time* (Aging) Daily 1st Year |
< +/- 0.5 PPB < +/- 50 PPB |
< +/- 1 PPB < +/- 0.1 PPM |
< +/- 3 PPB < +/- 0.3 PPM |
| Time (Warm-up) Frequency at 25 minutes after power on @ + 25°C referenced to Frequency at 4 hours |
< +/- 10 PPB | < +/- 20 PPB | < +/- 50 PPB |
| Input Voltage (+/- 5% change) |
< +/- 1 PPB | < +/- 2 PPB | < +/- 5 PPB |
| Other Parameters | |||
| Phase Noise @ 10 Hz | -120 dBc | -115 dBc | -105 dBc |
| Electrical Frequency Adjustment Range** Positive Slope (0 to +8 VDC) |
> +/- 0.3 PPM < +/- 0.9 PPM |
> +/- 0.5 PPM < +/- 1.3 PPM |
> +/- 1.0 PPM < +/- 2.5 PPM |
| Reference Voltage Output (Used to drive the electrical frequency adjustment input) |
+8 VDC +/- 5% < +/- 1 mV -30°C to +70°C Referenced to +25°C < +/- 1 mV/5% change on input voltage Available current: 1 mA |
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| Input Power | +12 VDC +/- 5%, < 700 mA @ turn on, < 3 Watts Steady State @ +25°C | ||
| Package | 2.80 x 2.00 x 1.50 inches (LxWxH) | ||
| Units | 1 PPM = 1x10-6 1 PPB = 1x10-9 | ||
| * All aging stabilities are after storage of up to 1 year and apply after 30 days of continuous operation. The daily aging rate also applies at the time of shipment from factory. |
| ** The Electrical Frequency Adjustment Range is sufficient for the life of the oscillator |
| Specifications subject to change with frequency. |
| Available Frequency Range: 5 MHz
to 50 MHz Including 5.0, 10.0, 10.23, 10.24, 12.352, 15.36, 16.384, 19.44, and 19.6608 MHz. |
| AVAILABLE OPTIONS: Square Wave Output, Low Phase Noise, Different Input Voltage, Pin Patterns, Oven Monitor, Mechanical Frequency Adjustment, Wide Electrical Frequency Adjustment, Low Profile, Fast Warm Up |
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