Check The Setup/Hold Combination - Agilent Technologies 1680 series Service Manual

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c 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 combination

The following setup/hold combinations will be tested:
Setup/Hold Combinations
Test
Setup/Hold
Combination
Times
1
4.50/-2.0 ns
2
-2.0/4.50 ns
1 Disable the pulse generator channel 1 COMP (with the LED off).
2 Using the Delay mode of the pulse generator channel 1, position the pulses
according to the setup time of the setup/hold combination selected,
+0.0 ps or −100 ps as measured on the oscilloscope:
a On the Oscilloscope, select [Define meas] Define ∆ Time - Stop edge:
rising, Edge number 2.
b In the oscilloscope timebase menu, select Position. Using the
oscilloscope knob, position the data waveform so the falling edge is near
the center of the display.
To test the single-clock, single-edge, state acquisition
Setup/Hold
Sample Position
Window
(in middle of Window)
2.5 ns
-3.25 ns
2.5 ns
+3.25 ns
Chapter 3: Testing Performance
41

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