N5990A Datasheet, PDF (12/23 Pages) Agilent(Hewlett-Packard) – Test Automation Software Platform

12 | Keysight | N5990A Test Automation Software Platform - Data Sheet
Consumer Electronics and Video Test Applications - DisplayPort
DisplayPort, an emerging
standard
DisplayPort defines a high-bandwidth
interface for connecting laptop or
personal computers with display monitors
or high-definition consumer electronic
devices. VESA, an organization comprised
of leading companies in the high-
definition digital display industry drives
the development of this interface.
Meet the test requirements
As part of its standards compliance, VESA
has established a comprehensive compli-
ance test program for DisplayPort that
includes product certification at indepen-
dent third-party test houses, for physical
layer and link layer compliance testing.
Physical layer test is comprised of source,
sink and cable (media) tests detailed in
the DisplayPort CTS (compliance test
specification). The Keysight test products
and methodologies are approved as MOI
(method of implementation) by VESA.
Automated tests
As with all other supported computer
bus or video standard tests, the N5990A
software platform provides fast, cali-
brated, automated receiver testing.
The receiver tests N5990A Option 155
(Figure 19) require DUT register access.
They complement the Infiniium oscil-
loscope transmitter compliance test
software U7232D. U7232D is fully
integrated into the N5990A with Option
255. The CTS 1.2 test coverage is given in
Table 7. For eDP testing, contact BitifEye.
Figure 19. N5990A DisplayPort receiver jitter tolerance test
Supported hardware
The standard DisplayPort receiver test
setup is given in Figure 20. It is based
on the J-BERT M8020A, N4903B, the
W2641B test fixture, a DisplayPort AUX
channel controller and an ISI generator
(both are available from BitifEye) and an
external PC running N5990A. A suitable
Infiniium oscilloscope is used for the
transmitter tests and the calibration of the
receiver test subsystem. All DisplayPort
data lanes can be tested one after the
other without the need of user interaction
in combination with an optional BitifEye
2100 Series switch.
Table 7. DisplayPort CTS 1.2b test coverage
Receiver test name
RBR, HBR and HBR2 jitter tolerance tests
HBR and HBR2 zero-length jitter tolerance tests
Jitter tolerance characterization
Datarate deviation tests
Sensitivity tests
Intra-pair skew tests
Variable parameter test (user-selectable swing,
SJ and RJ)
Figure 20. Receiver test station