Check The Setup/Hold With Single Clock, Multiple Clock Edges - Agilent Technologies 1680 series Service Manual

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2 Check the data pulse width. Using the oscilloscope, verify that the data
pulse width is 3.000 ns, +0 ps or −100 ps:
a In the oscilloscope Timebase menu, select Scale: 1.000 ns/div.
b In the oscilloscope Timebase menu, select Position. Using the
oscilloscope knob, position the data waveform so that the waveform is
centered on the screen.
c On the oscilloscope, select [Shift] + width: channel 1, then select
[Enter] to display the data signal pulse width (+ width(1)).
d If the pulse width is outside the limits, adjust the pulse generator
channel 2 width until the pulse width is within limits.
Check the setup/hold with single clock, multiple clock
edges
The following setup/hold combinations will be tested.
Setup/Hold Combinations
Test
Setup/Hold
Combination
Times
1
5.0/-2.0 ns
2
-1.5/4.50 ns
To test the single-clock, multiple-edge, state acquisition
Setup/Hold
Sample Position
Window
(in middle of Window)
3.0 ns
-3.5 ns
3.0 ns
+3.0 ns
Chapter 3: Testing Performance
61

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