Q-tech QT66T Manuel d'utilisateur télécharger pdf (Page 3)

MIL-PRF-55310/19E

REQUIREMENTS:

Interface and physical dimensions: See figure 1.

Mounting: See figure 1.

Pads: See figure 1.

Seal: Hermetic in accordance with MIL-PRF-55310

, maximum leakage rate 5 x 10

-8

atm cc/s.

Weight: 3 grams, 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: -62C to +125C.

Oscillator load: Standard TTL loads (see table I).

Output waveform: Symmetrical square wave.

Output voltage:

Logic 1: 2.4 V dc, minimum at 400 A source.

Logic 0: 0.5 V dc, maximum with 16 mA sink.

Rise and fall times: See table I.

Duty cycle: See table I.

Supply voltage: 5.0 V dc 10 percent.

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

/ 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 (f

ref

) instead of to the nominal frequency (f

nom

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Q-tech QT66T Manuel d'utilisateur Page 3