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80A05 Electrical Clock Recovery Module
6.
Connect a less than 2 ns delay, 50
Ω
coaxial cable between the TRIGGER
CLOCK OUTPUT of the 80A05 Module and the Channel 3 input on the
80E02 Sampling Module.
7.
The D3186 Pulse Pattern Generator must use its own reference clock. Set the
following data signal parameters on the pattern generator:
AC coupled
Amplitude
0.700 V
PRBS23 pattern
NRZ data format
Balanced duty cycle (crossing set to the default 50% level)
Data rate to 0.15552 Gb/s (the data rate will be changed, depending on each speci
fi
c
data rate to be tested later in the procedure)
8.
Allow the instrument and its modules to warm up for at least 20 minutes in an
environment that has had less than 1 °C variation throughout the warm-up
cycle.
9.
Push the
DEFAULT SETUP
button on the instrument and click
Yes
.
10.
Push the
SELECT ON/OFF
button on the 80E02 Sampling Module so that
the adjacent indicator lights. This turns on Channel 3 (C3), which displays the
TRIGGER CLOCK signal.
11.
Select
Setup > Mode/Trigger
from the instrument main menu. Make the
following changes:
a.
Set the Trigger Source to
Direct
.
b.
Click the
Advanced Trigger Setup
button.
c.
Click the
Set to 50%
button.
d.
Select
positive
edge for the Slope.
e. Close
the Advanced Trigger Setup dialog box.
12.
Select the Meas Setup dialog box tab. Make the following changes:
a.
Select
Meas 1
and make sure the
Source1
button is selected.
b.
In the Source tab, select
C1 on Main
and click the
Pulse
button.
c.
Choose measurement
Select Meas > Pulse – Amplitude > Amplitude
.
d.
Make sure the Meas 1
ON
check box is selected.
e.
Select
Meas 2
and make sure the
Source1
button is selected.
f.
In the Source tab, select
C3 on Main
and click the
Pulse
button.
g.
Choose measurement
Select Meas > Pulse – Timing > RMS Jitter
.
DSA8300 Performance Veri
fi
cation
255
Содержание 80A00
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Страница 16: ...Important safety information x DSA8300 Performance Verification ...
Страница 213: ...Electrical Sampling Modules Figure 21 Setup to measure Power in DSA8300 Performance Verification 195 ...