Q-Tech QT78HCD - Manual (Page 3)

MIL-PRF-55310/27D
3
TABLE I. Dash numbers and operating characteristics.
1/ Maximum input current for no load condition.
2/ See figure 3.
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/
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.
±10 ppm per year, maximum
±1.5 ppm per 30 days.
±3 ppm per 90 days.
Terminal strength:
Method 211 of MIL-STD-202 , test condition A.
Applied force: 8 ounces each terminal.
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 +23
°C ±1°C (f
ref
) instead of to the nominal frequency (f
nom
).
Pulse characteristics Initial
accuracy
Frequency-temperature
tolerance (ppm)
-55
°C
to
+125
°C
-55
°C
to
+105
°C
-20
°C
to
+70
°C
Dash
number
Output
frequency
range
Input
current
(max) 1/ Rise and
fall times
(max) 2/
Duty cycle
min-max
2/
at +23
°C
±1°C
A B C
01 1.000 MHz to
14.999 MHz 20 mA 10 ns 45% to 55% ±15 ppm ±50
ppm
±40
ppm
±25
ppm
04 1.000 MHz to
14.999 MHz 20 mA 10 ns 45% to 55% ±25 ppm ±100
ppm
±80
ppm
±50
ppm
11 15.000 MHz to
29.999 MHz 15 mA 10 ns 45% to 55% ±15 ppm ±50
ppm
±40
ppm
±25
ppm
14 15.000 MHz to
29.999 MHz 15 mA 10 ns 45% to 55% ±25 ppm ±100
ppm
±80
ppm
±50
ppm
21 30.000 MHz to
59.999 MHz 35 mA 5 ns 40% to 60% ±15 ppm ±50
ppm
±40
ppm
±25
ppm
24 30.000 MHz to
59.999 MHz 35 mA 5 ns 40% to 60% ±25 ppm ±100
ppm
±80
ppm
±50
ppm
31 60.000 MHz to
85.000 MHz 45 mA 5 ns 40% to 60% ±15 ppm ±50
ppm
±40
ppm
±25
ppm
34 60.000 MHz to
85.000 MHz 45 mA 5 ns 40% to 60% ±25 ppm ±100
ppm
±80
ppm
±50
ppm