
DS1045
3 of 6
DELAY VS. PROGRAMMED VALUE Table 2
PART NUMBER
OUTPUT DELAY VALUE
DS1045-3
9
12
15
18
21
24
27
30
33
36
39
42
45
48
51
54
DS1045-4
9
13
17
21
25
29
33
37
41
45
49
53
57
61
65
69
DS1045-5
9
14
19
24
29
34
39
44
49
54
59
64
69
74
79
84
PROGRAM VALUES FOR EACH DELAY VALUE
A0 OR B0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
A1 OR B1
0
1
0
1
0
1
0
1
A2 OR B2
0
1
0
1
A3 OR B3
0
1
DS1045 TEST CIRCUIT Figure 2
TEST SETUP DESCRIPTION
Figure 2 illustrates the hardware configuration used for measuring the timing parameters of the DS1045.
The input waveform is produced by a precision pulse generator under software control. Time delays are
measured by a time interval counter (20 ps resolution) connected to the output. The DS1045 parallel
inputs are controlled by an interface to a central computer. All measurements are fully automated with
each instrument controlled by the computer over an IEEE 488 bus.