MIL-PRF-55310/21G
TABLE I. Dash numbers and operating characteristics.
Input
Output
Dash
Pulse characteristics
Frequency-temperature
Initial
Frequency
current
frequency
num-
tolerance (ppm)
accuracy
aging
-55°C
-55°C
-20°C
max at
range
ber
ppm
ppm/year
Rise
Load
Duty
5.25 V
at
after
and
max
cycle at
to
to
to
±1%
+23°C
+125°C
+105°C
+70°C
30 days
2/
fall
1.4 V
±1°C
1/
times
max
A
B
C
mA
ns
percent
±15
±10
±50
±40
±25
01
1.0 MHz to
70
15
40 to 60
10 TTL
5.0 MHz
±25
±10
±100
±75
±50
02
1.0 MHz to
70
15
40 to 60
10 TTL
5.0 MHz
±25
±10
±200
±150
±100
03
1.0 MHz to
70
15
40 to 60
10 TTL
5.0 MHz
±15
±10
±50
±40
±25
11
5.0 MHz to
30
15
40 to 60
10 TTL
20.0 MHz
±25
±10
±100
±75
±50
12
5.0 MHz to
30
15
40 to 60
10 TTL
20.0 MHz
±25
±10
±200
±150
±100
13
5.0 MHz to
30
15
40 to 60
10 TTL
20.0 MHz
±15
±10
±50
±40
±25
21
20.0 MHz to
65
5
40 to 60
6 TTL
60.0 MHz
±25
±10
±100
±75
±50
22
20.0 MHz to
65
5
40 to 60
6 TTL
60.0 MHz
±25
±10
±200
±150
±100
23
20.0 MHz to
65
5
40 to 60
6 TTL
60.0 MHz
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-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.
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.
4
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