HP 1652B Getting Started page 58

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Making the
What you want to know is how much time elapses between the time
Measuiement
RAS goes low and the time CAS goes high again. You will use the X
and 0 markers to quickly find the answer. Remember, you specified
the negative-going edge of the RAS to be your trigger point; therefore,
the X marker should be on this edge if X to Trig = 0. If not, follow
steps I and 2.
1. Place the cursor on the X to Trig field and press SELECT . A
pop-up will appear showing you the current time from the X marker
to the trigger; however, you don't need to worry about this number
now.
2. Rotate the KNOB to place the X marker on the negative-going edge
of the RAS waveform and press SELECT . The pop-up closes and
displays X to Trig = 0.000 s.
3. Place the cursor on 0 to Trig and press SELECT . Repeat step 2
except place the 0 marker on the positive-going edge of the CAS
waveform and press SELECT. The pop-up closes and displays 0 to
Trig = 710 ns.
lDRfVl TEST I-
liming Waveforms
llarkers [ Time 1 X to Trig
I
ficcumulate
prr 1 0 to Trig
[ 710 ns 1
Time/D iv 1200 Delay I
1 Time X to 0 1
At [Xl
0
710 ns
f--GE-J
HP 16528/1653B
Getting Started Guide
Using the Timing Analyzer
5-13