MIL-PRF-55310/17F
TABLE I. Dash numbers and operating characteristics.
Frequency-temperature
Pulse characteristics
Initial
Dash
Frequency
Output
tolerance (ppm)
Input
-55C
-55C
-20C
accuracy
num-
aging
frequency
current
Rise
Load
Duty
ppm
ber
ppm/year
range
max at
and
max
cycle at
to
to
to
+125C
+105C
+70C
at
after
5.25 V
2/
fall
1.4 V
+23C
1%
30 days
times
1C
1/
max
A
B
C
percent
15 ppm
5 ppm
50
40
25
01
250 kHz to
65 mA
15 ns
45 to 55
10 TTL
5 MHz
ppm
ppm
ppm
25 ppm
10 ppm
100
40
25
04
250 kHz to
65 mA
15 ns
45 to 55
10 TTL
5 MHz
ppm
ppm
ppm
15 ppm
5 ppm
50
40
25
11
4 MHz to
55 mA
15 ns
40 to 60
10 TTL
20 MHz
ppm
ppm
ppm
25 ppm
10 ppm
100
40
25
14
4 MHz to
55 mA
15 ns
40 to 60
10 TTL
20 MHz
ppm
ppm
ppm
15 ppm
5 ppm
50
40
25
21
20 MHz to
55 mA
5 ns
40 to 60
10 TTL
50 MHz
ppm
ppm
ppm
25 ppm
10 ppm
100
40
25
24
20 MHz to
55 mA
5 ns
40 to 60
10 TTL
50 MHz
ppm
ppm
ppm
1/ Maximum input current for no load condition. Actual configuration of TTL loads must be added to determine
power supply requirements.
2/ A TTL unit load is defined as: 1.6 mA sink, 0.04 mA source, and 2 pF capacitance.
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/
Frequency-voltage tolerance: 2 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).
5 ppm per year, maximum
10 ppm per year, maximum
0.7 ppm per 30 days.
1.5 ppm per 30 days
1.5 ppm per 90 days
3 ppm per 90 days
Terminal strength: Method 211 of MIL-STD-202, test condition C.
Applied force: 2 pounds each terminal for 10 seconds.
Bends: Five at 45 degrees each.
Frequency-environmental tolerance: Not applicable.
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 (fref) instead of to the nominal frequency (fnom).
4
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