Q-Tech QT24T User Manual
Page 4
MIL-PRF-55310/21G
4
TABLE I. Dash numbers and operating characteristics.
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.
Vibration, sinusoidal: In accordance wi
Nonoperating: Test condition G.
Operating: Not required.
Ambient pressure:
Nonoperating: In accordance wi
Pulse characteristics
Frequency-temperature
tolerance (ppm)
-55
°C
to
+125
°C
-55
°C
to
+105
°C
-20
°C
to
+70
°C
Dash
num-
ber
Output
frequency
range
Input
current
max at
5.25 V
±1%
1/
Rise
and
fall
times
max
Duty
cycle at
1.4 V
Load
max
2/
Initial
accuracy
ppm
at
+23
°C
±1°C
Frequency
aging
ppm/year
after
30 days
A B C
mA ns percent
01
1.0 MHz to
5.0 MHz
70
15
40 to 60
10 TTL
±15
±10
±50
±40
±25
02
1.0 MHz to
5.0 MHz
70
15
40 to 60
10 TTL
±25
±10
±100
±75
±50
03
1.0 MHz to
5.0 MHz
70
15
40 to 60
10 TTL
±25
±10
±200
±150
±100
11
5.0 MHz to
20.0 MHz
30
15
40 to 60
10 TTL
±15
±10
±50
±40
±25
12
5.0 MHz to
20.0 MHz
30
15
40 to 60
10 TTL
±25
±10
±100
±75
±50
13
5.0 MHz to
20.0 MHz
30
15
40 to 60
10 TTL
±25
±10
±200
±150
±100
21
20.0 MHz to
60.0 MHz
65
5
40 to 60
6 TTL
±15
±10
±50
±40
±25
22
20.0 MHz to
60.0 MHz
65
5
40 to 60
6 TTL
±25
±10
±100
±75
±50
23
20.0 MHz to
60.0 MHz
65
5
40 to 60
6 TTL
±25
±10
±200
±150
±100