INCH-POUND
MIL-PRF-55310/19D
24 February 2005
SUPERSEDING
MIL-PRF-55310/19C
8 July 2002
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 and MIL-PRF-55310.
Pad number
4
10
31
37
39
1-3
5-9
11-30
32-36
38
40
Inches
.005
.007
.010
.015
.020
.040
mm
0.13
0.18
0.25
0.38
0.51
1.02
Function
B+
B+
GND
GND
OUTPUT
NC
NC
NC
NC
NC
NC
mm
1.52
2.16
9.14
11.61
12.19
Inches
.060
.085
.360
.457
.480
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.
AMSC N/A
FSC 5955
MIL-PRF-55310/19D
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 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: 5.0 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/
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
).
2
-8
MIL-PRF-55310/19D
TABLE I. Dash numbers and operating characteristics.
Dash
num-
ber
Output
frequency
range
Input
current
max 1/
Pulse characteristics
Rise
and
fall
times
(max)
ns
15
15
15
5
5
5
5
5
5
Duty
cycle at
1.4 V
Load
max
2/
Initial
accuracy
ppm
at
+23°C
±1°C
±25
±25
±15
±25
±25
±15
±25
±25
±15
Frequency
aging
ppm/year
after
30 days
Frequency-temperature
tolerance (ppm)
-55°C
-55°C
-20°C
to
to
to
+125°C
+105°C
+70°C
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
±10
±10
±5
±10
±10
±5
±10
±10
±5
±100
±200
±50
±100
±200
±50
±100
±200
±50
B
±75
±150
±40
±75
±150
±40
±75
±150
±40
C
±50
±100
±25
±50
±100
±25
±50
±100
±25
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
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 +70°C
±0.2°C
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 +230°C
±10°C
for 15 seconds shall not degrade the performance.
3
MIL-PRF-55310/19D
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 sheet are marked with asterisks 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 - 11
Review activities:
Army - AR, MI, SM
Navy - AS, CG, MC
Air Force - 19, 99
NASA - NA
*
Preparing activity:
Army - CR
Agent:
DLA - CC
(Project 5955-0804)
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
.
4
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