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Q-Tech QT66T User Manual

Page 4

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MIL-PRF-55310/19E

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 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.

Dash
num-
ber

Output

frequency

range

Input

current

max 1/

Pulse characteristics

Initial

accuracy

ppm

at

+23

C

1C

Frequency

aging

ppm/year

after

30 days

Frequency-temperature

tolerance (ppm)

Rise

and

fall

times

(max)

Duty

cycle at

1.4 V

Load

max

2/

-55

C

to

+125

C

-55

C

to

+105

C

-20

C

to

+70

C

A B C

mA ns percent

01
02
03

1.0 MHz

to

16.0 MHz

75
75
75

15
15
15

40 to 60
40 to 60
40 to 60

10 TTL
10 TTL
10 TTL

25
25
15

10
10

5

100
200

50

75

150

40

50

100

25

11
12
13

16.0 MHz

to

40.0 MHz

40
40
40

5
5
5

40 to 60
40 to 60
40 to 60

10 TTL
10 TTL
10 TTL

25
25
15

10
10

5

100
200

50

75

150

40

50

100

25

21
22
23

40.0 MHz

to

60.0 MHz

70
70
70

5
5
5

40 to 60
40 to 60
40 to 60

10 TTL
10 TTL
10 TTL

25
25
15

10
10

5

100
200

50

75

150

40

50

100

25