Delay Time Jitter; Delay Time J It T E R; Settings For Timing Accuracy Checks - Tektronix 2246 1Y Service Manual

Performance Check Procedure—2246 1Y and 2246 Mod A Service
SEC/DIV Setting
Normal
20 ns
50 ns
0.1
A S
0.2
A S
0.5
A S
1
A S
2
A S
5
A S
10
A S
20
A S
50
A S
0.1 ms
0.2 ms
0.5 ms
1 ms
2 ms
5 ms
10 ms
20 ms
50 ms
0.1 s
0.2 s
0.5 s
i. Set:
Horizontal MODE
SEC/DIV
j. Set tim e-m ark generator for 5 ns time marks.
k. Repeat the magnified accuracy and linearity for
the A Sweep at all SEC/DIV settings.
4-20
Table 4-3

Settings for Timing Accuracy Checks

X I 0 MAG
2 ns
5 ns
10 ns
20 ns
50 ns
0.1
A S
0.2
A S
0.5
A S
1
A S
2
A S
5
A S
10
A S
20
A S
50
A S
0.1 ms
0.2 ms
0.5 ms
A Sweep only
1 ms
2 ms
5 ms
10 ms
20 ms
50 ms

7. Delay Time Jitter

a.
A
2 ns (with X I 0
MAG on)
b.
Tim e-M ark Setting
Normal
20 ns
50 ns
0.1 ns
0.2
A S
0.5
A S
1
A S
2
A S
5
A S
10
A S
20
A S
50
A S
0.1 ms
0.2 ms
0.5 ms
1 ms
2 ms
5 ms
10 ms
20 ms
50 ms
0.1 s
0.2 s
0.5 s
Set:
X I 0 MAG
A SEC/DIV
Horizontal MODE
SEC/DIV
Set tim e-m ark generator for 1 ms time marks.
X I 0 MAG
5 ns
5 ns
10 ns
20 ns
50 ns
0.1 (is
0.2 pis
0.5 (is
1
( I S
2 (is
5 (is
10 (is
20 (is
50 (is
0.1 ms
0.2 ms
0.5 ms
1 ms
2 ms
5 ms
10 ms
20 ms
50 ms
Off
1 ms
ALT
0.5 (is