MIL-PRF-55310/26D
REQUIREMENTS:
Interface and physical dimensions: See figure 1.
Package configuration: See figure 1.
Terminals: See figure 1.
Weight: 0.5 ounces (14.2 grams-mass), maximum.
Oscillator: Class 2 or any class 1 or class 3 oscillator meeting all class 2 requirements and verification tests
specified herein and in 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: -62C to +125C.
Load test circuit: See figure 2.
Supply voltage (B+): 5.0 V dc 10 percent.
Overvoltage survivability: In accordance with MIL-PRF-55310.
Supply current: At designated supply voltage (see table I).
Start-up time: 15 milliseconds maximum, measurement shall be taken at reference temperature and operating
temperature range endpoints.
Nominal output frequency: Frequency as designated at time of acquisition (see table I).
Output logic voltage levels at designated HCMOS load: See figure 3.
Logic 1: 90 percent of VDD, minimum.
Logic 0: 10 percent of VDD, maximum.
Output waveform: Symmetrical square wave, HCMOS logic compatible (see figure 3).
Duty cycle: See table I and figure 3.
Rise and fall times (see table I): Measurements shall be taken at the 10 percent and 90 percent peak-to-peak
output voltage levels, with peak-to-peak output defined as Logic 1 - Logic 0 (see figure 3).
Initial accuracy at reference temperature: See table I.
Initial frequency-temperature accuracy (1/2 temperature cycle): See table I. Measurements shall be taken at ten
equally spaced increments over the specified operating temperature range.
Frequency-voltage tolerance 2 ppm maximum for a 10 percent change in supply voltage. Measurements shall
be taken at reference temperature and operating temperature range endpoints.
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