INCH-POUND
MIL-PRF-55310/19E
11 June 2009
SUPERSEDING
MIL-PRF-55310/19D
24 February 2005
PERFORMANCE SPECIFICATION SHEET
OSCILLATOR, CRYSTAL CONTROLLED, TYPE 1 (CRYSTAL OSCILLATOR (XO)),
1.0 MHz THROUGH 60.0 MHz, HERMETIC SEAL, SQUARE WAVE, TTL
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.
Pad number
4
10
31
37
39
1-3
5-9
11-30
32-36
38
40
Function
B+
B+
GND
GND
OUTPUT
NC
NC
NC
NC
NC
NC
FIGURE 1. Dimensions and configuration.
AMSC N/A
FSC 5955
MIL-PRF-55310/19E
Ltr
Min
A
B
C
D
E
F
G
H
Inches
Max
.462 TYP
.495 SQ
.085
.047
.025
.070
.365 SQ
.045
Min
11.48 TYP
11.81 SQ
---
0.84
0.38
1.40
9.02 SQ
0.89
mm
Max
11.73 TYP
12.57 SQ
2.16
11.94
0.63
1.78
9.27 SQ
1.14
.452 TYP
.465 SQ
---
.033
.015
.055
.355 SQ
.035
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 decimals.
4. All pads with NC function may be connected externally.
FIGURE 1. Dimensions and configuration - Continued.
2
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: -62C to +125C.
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 +23C
1C,
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 +23C
1C
(f
ref
) instead of to the nominal frequency (f
nom
).
3
MIL-PRF-55310/19E
TABLE I. Dash numbers and operating characteristics.
Dash
num-
ber
Output
frequency
range
Input
current
max 1/
Pulse characteristics
Initial
accuracy
ppm
at
+23C
1C
Frequency
aging
ppm/year
after
30 days
Frequency-temperature
tolerance (ppm)
-55C
to
+125C
A
percent
40 to 60
40 to 60
40 to 60
40 to 60
40 to 60
40 to 60
40 to 60
40 to 60
40 to 60
10 TTL
10 TTL
10 TTL
10 TTL
10 TTL
10 TTL
10 TTL
10 TTL
10 TTL
25
25
15
25
25
15
25
25
15
10
10
5
10
10
5
10
10
5
100
200
50
100
200
50
100
200
50
-55C
to
+105C
B
75
150
40
75
150
40
75
150
40
-20C
to
+70C
C
50
100
25
50
100
25
50
100
25
Rise
and
fall
times
(max)
01
02
03
11
12
13
21
22
23
1.0 MHz
to
16.0 MHz
16.0 MHz
to
40.0 MHz
40.0 MHz
to
60.0 MHz
mA
75
75
75
40
40
40
70
70
70
ns
15
15
15
5
5
5
5
5
5
Duty
cycle at
1.4 V
Load
max
2/
1/
2/
Maximum input current for no load condition. Actual configuration of TTL loads must be added to determine
power supply requirements.
A TTL unit load is defined as: 1.6 mA sink, 0.04 mA source, and 2pF capacitance.
Frequency-voltage tolerance:
4
ppm maximum for a
10
percent change in supply voltage. Measurements taken
at reference temperature and operating temperature range end points.
Frequency aging: Measurements shall be taken at +70C
0.2C
at intervals of not more than every 72 hours for
30 days minimum (see table I).
10
ppm per year, maximum
1.5
ppm per 30 days.
3
ppm per 90 days.
Frequency-environmental tolerance: Not applicable.
Vibration, sinusoidal: In accordance with
MIL-PRF-55310
and
method 204 of MIL-STD-202.
Nonoperating: Test condition G.
Operating: Not required.
Ambient pressure:
Nonoperating: In accordance with
MIL-PRF-55310.
Operating:
Method 105 of MIL-STD-202,
test condition C.
Reflow soldering: Reflow soldering of the unit at +230C
10C
for 15 seconds shall not degrade the performance.
4
MIL-PRF-55310/19E
Part or Identifying Number (PIN): Consists of “M” prefix followed by specification sheet number, a dash and coded
alphas, and numeric number. See example:
EXAMPLE
M55310/19-
S
01
A
XXXXXXXX
M prefix and specification sheet number
Product level (S, B, or C)
Dash number (see table I)
Operating temperature range
(A, B, or C) (see table I)
Frequency
Reference documents. In addition to
MIL-PRF-55310,
this document references the following:
MIL-STD-202
The margins of this specification are marked with vertical lines to indicate where changes from the previous issue
were made. This was done as a convenience only and the Government assumes no liability whatsoever for any
inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document
based on the entire content irrespective of the marginal notations and relationship to the last previous issue.
Custodians:
Army - CR
Navy - EC
Air Force - 99
DLA - CC
Review activities:
Army - AR, MI, SM
Navy - AS, CG, MC
Air Force - 19, 84
NASA - NA
Preparing activity:
Army - CR
Agent:
DLA - CC
(Project 5955-2009-019)
NOTE: The activities listed above were interested in this document as of the date of this document. Since
organizations and responsibilities can change, you should verify the currency of the information above using the
ASSIST Online database at
http://assist.daps.dla.mil.
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