Q-Tech QT78TD - Manual (Page 2)

MIL-PRF-55310/28C
2
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
μA 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 V dc
±10 percent.
Input current: See table I.
Enable/disable:
Output disabled (high impedance): Pin 1 input
≤ 0.8 V dc.
Output active: Pin 1 input
≥ 2.0 V dc or open.
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.