TB 9-6625-2295-24
Table 23. Timing (CAL 01, Steps 7 Through 15)
Test instrument
Test instrument
CAL 01
superimposed
Oscilloscope
'
'
displayed
displayed B
REF
calibrator
t
step number
sweep rdivision
ime marker
time marker
output settings
7
2
10
0.2
1 Ps
8
2
10
0.2
2 Ps
91
4
28
1.2
2 Ps
10
2
10
0.2
10 Ps
11
2
10
0.2
50 Ps
121
4
28
1.2
50 Ps
13
2
10
0.2
0.5 Ps
141
4
28
1.2
0.5 Ps
15
3
19
50 ns
0.2
1
If ' control is adjusted; the previous step will be repeated.
(32) After completion of step 15 of table 23, TI display will indicate ADJ ', (step) 16,
20 ns, 500 ps.
(33) Set oscilloscope calibrator for a CHAN 1, MARKER mode output of 20 ns.
(34) Adjust ' control for approximately 1 time marker per division. Set oscilloscope
calibrator for a CHAN 1, MARKER mode output of 2 ns.
(35) Set VOLTS/DIV switch for a display amplitude of >3 division. Adjust ' control
to superimpose displayed B sweep time markers.
(36) Press and release upper TRIGGER COUPLING pushbutton and display
readout will indicate ADJ ', (step) 17, 1 Ps.
(37) Return VOLTS/DIV switch to original setting.
(38) Adjust TRACE SEP control fully cw.
(39) Connect oscilloscope calibrator SOURCE/MEASURE CHAN 1 to TI CH 1 and
oscilloscope Vertical 1 input.
(40) Connect TI B GATE OUT to oscilloscope Vertical 2 input.
(41) Set oscilloscope controls as listed in (a) through (c) below.
(a) Vertical 1 and 2 Coupling to DC, Input to 50 Ÿ, and Vertical 1 on.
(positive).
(b) Trigger Source to 2 and Trigger Slope to
(c) Sweep speed to 20 ns.
(42) Set oscilloscope calibrator for a CHAN 1, MARKER mode output of 1 s.
(43) Adjust TI ' control for 8 time markers over center 8 major divisions of TI
display. Adjust TI ' REF OR DLY POS control to bring time markers onto oscilloscope
display.
31
