MIL-PRF-55310 Datasheet, PDF (2/5 Pages) List of Unclassifed Manufacturers – OSCILLATOR, CRYSTAL CONTROLLED, TYPE 1 (CRYSTAL OSCILLATOR (XO)), 0.01 Hz THROUGH 15.0 MHz, HERMETIC SEAL, SQUARE WAVE, CMOS

MIL-PRF-55310/18D
REQUIREMENTS:
Interface and physical dimensions: See figure 1.
Mounting: See figure 1.
Terminals: See figure 1.
Seal: Hermetic in accordance with MIL-PRF-55310, maximum leakage rate 5 x 10^-8 atm cc/s.
Weight: 0.5 ounce, maximum.
* Oscillator: Class 2 (see 1.2.3 of MIL-PRF-55310).
Calibration: Manufacturer calibrated.
* Screening: In accordance with MIL-PRF-55310, product level B or S, as applicable.
Temperature:
Operating: See table I.
Storage: -62°C to +125°C.
Oscillator load: 10 kilohms ±5 percent shunted by 15 pF ±5 percent capacitor for CMOS compatible square.
Output waveform: Symmetrical square wave.
Output voltage: At designated CMOS load.
Logic 1: See table I.
Logic 0: See table I.
Rise and fall times: See table I.
Duty cycle: 40 to 60 percent duty cycle.
Supply voltage: See table I.
Input current: At designated supply voltage (see table I).
Output frequency: Frequency as designated at time of acquisition (see table I).
Initial accuracy at reference temperature (up to 30 days after shipment): See table I.
Initial frequency-temperature accuracy (one-half temperature cycle): Verification applicable. 1/
Frequency-temperature tolerance (one-half temperature cycle, referenced to frequency measured at +23°C ±1°C,
immediately prior to starting of the test): See table I. Measurements taken at ten equally spaced increments over
the specified operating temperature range. 1/
1/
For the purpose of transitioning this device to MIL-PRF-55310, ‘Frequency stability versus temperature’ has
been renamed ‘Frequency-temperature tolerance’. The verification requirements of ‘initial frequency-
temperature accuracy (one-half temperature cycle)’ shall apply except that frequency measurements shall
be referenced to the frequency measured at +23°C ±1°C (fref) instead of to the nominal frequency (fnom).
2