INCH-POUND
MIL-PRF-55310/38B
1 February 2013
SUPERSEDING
MIL-PRF-55310/38A
19 April 2010
PERFORMANCE SPECIFICATION SHEET
OSCILLATOR, CRYSTAL CONTROLLED, TYPE 1 (CRYSTAL OSCILLATOR (XO)),
500 KHz THROUGH 150 MHz, HERMETIC SEAL, LOW VOLTAGE CMOS
This specification is approved for use by all Departments
and Agencies of the Department of Defense.
The requirements for acquiring the product described herein
shall consist of this specification sheet and MIL-PRF-55310.
Ltr
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for general information only.
3. Unless otherwise specified, tolerances are ±.005 (0.13 mm) for three place decimals and ±.02 (0.5 mm) for
two place d ecimals.
FIGURE 1. Interface and physical dimensions.
AMSC N/A FSC 5955
MIL-PRF-55310/38B
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
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.
Load test circuit: See figure 2.
Output waveform: Symmetrical square wave, 3.3 volt CMOS logic compatible (see figure 3).
Output logic voltage levels at designated CMOS (see figure 3):
Logic 1: 90 percent of V
, minimum.
DD
Logic 0: 10 percent of V
, maximum.
DD
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 define d as level 1-level 0 (see f igur e 3).
Duty cycle: See table I and figure 3.
Supply voltage: +3.3 V dc ±10 percent.
Input current: At designated supply voltage (see table I).
Enable/disable:
Output disabled (high impedance): Pin 1 input ≤ 0.3 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.
-8
atm cc/s.
2