Making The Measurement - HP 1652B Getting Started Manual

Making the
Measurement
What you want to know is how much time elapses between the time
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
1
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.
HP 16528/1653B
Timing Analyzer Measurement Example
Front-Panel Reference
2043
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.
[DRNl
TEST 1 - llalng Llavefams
narkero r Time 1 n
to
Trig 10 1 Tlrne x to 0 ] 710 ns
FIccumula te
I] 0 to Trig vj
At pciq 1-J
Tlme/Dlv [I Delay 1-1
0
Figure 20-I 1. Marker Placement