4
The U7243A USB 3.0 electrical test
software saves you time by setting the
stage for automatic execution of USB
3.0 electrical tests. Part of the difficulty
of performing electrical tests for USB
3.0 is hooking up the oscilloscope,
loading the proper setup files, and
then analyzing the measured results by
comparing them to limits published in
the specification. The USB 3.0 electrical
test software does much of this work
for you. In addition, if you discover
a problem with your device, robust
debug tools are available to aid in root-
cause analysis. These debug tools are
provided by the Agilent E2688A
high-speed serial data analysis
software and N5400A EZJIT Plus jitter
analysis software, which you must
install on your oscilloscope to use the
USB 3.0 electrical test software.
The U7243A USB 3.0 electrical test
software offers many more electrical
tests than the SigTest application.
Unlike the SigTest application, the
U7243A USB 3.0 electrical test
software automatically configures
the oscilloscope for each test, and it
provides an informative results report
that includes margin analysis indicating
how close your product is to passing or
failing a particular test assertion. Table
1 shows a side-by-side comparison of
the capabilities of the USBIF SigTest
application and the Agilent U7243A
electrical test software
Capability Agilent U7243A USB 3.0 SigTest
Number of measurement assertions 24 4
Automated oscilloscopes setup for each
measurement
Yes, guided No, single setup
Measurement results Pass/fail with margin analysis Pass/fail with measured value
USB 3.0 test specification based
measurements methodology
Yes Yes
Clock recovery method USBIF SigTest or 1st/2nd order PLL USBIF SigTest
Custom HTML report generation Yes No
Selectable number of tests performed Yes No
Multi-trial run support Yes No
Debug mode for “what if” analysis Yes No
Table 1. Comparison of capabilities of the Agilent USB 3.0 electrical test software and the USB 3.0 SigTest application.
Benefits
U7243A benefits
(68 Seiten)
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