Unigraf UCD-240, User Manual

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UCD Console for UCD-340 User Manual | Unigraf Oy
28.
Note Parameters for this test should be programmed with averaged values from several “golden
sample” DUT’s.
Important In order to run this test with UCD-340, Unigraf Electrical Test Cable must be used and
Electrical Testing feature enabled with a corresponding license.
Parameters in use
 Test timeout (default 5 000 ms)
 DUT Capabilities flags (default 7)
Bits Description
0 DUT Support for DisplayPort Alt Mode (1 Yes, 0 No)
1 DUT can act as power source (1 Yes, 0 No)
2 DUT can receive power from TE (1 Yes, 0 No)
31:0 Reserved
 R-plug duration (default 1 500 ms)
 DUT attach timeout (default 10 000 ms)
 DP Alt Mode timeout (default 5 000 ms)
 DP Alt Mode AUX+ line idle low voltage (default 100 mV)
 DP Alt Mode AUX+ line idle high voltage (default 600 mV)
 DP Alt Mode AUX– line idle low voltage (default 2 500 mV)
 DP Alt Mode AUX– line idle high voltage (default 3 000 mV)
DUT as Power Sink
This test verifies operation of Vbus and GND lines for short-circuit and open-circuit
failures. The test is performed using mandatory PDO for power contract. During the test,
the TE will operate as power source, and advertise only
vSafe5V for power contract. In
order to run this test, the DUT must support Power Sink role.
In the start of the test TE temporarily disconnects the CC lines to simulate a re-plug event
and waits for Power Contract to be established.
After Power Contact has been established TE will wait for the delay stated in M easurement
delay parameter and measures the current in Vbus and GND lines and the voltage of Vbus.
The purpose of the delay is to allow the DUT time to stabilize its power consumption.
Note The test assumes that the current flows through the four separate Vbus and GND lines
evenly. Since current measurements are done sequentially, any variance in DUT power
consumption during the measurement can cause this test to fail.
Total currents are calculated for Vbus, and for GND. The difference in the measured values
of the four connections may not exceed the programmed deviation limits.
For PASS result, the measured Vbus voltage, Vbus current and GND line current must be
within the ranges defined by provided parameters.
Important In order to run this test with UCD-340, Unigraf Electrical Test Cable must be used and
Electrical Testing feature enabled with a corresponding license.
Parameters in use
 Test timeout (default 5 000 ms)
 DUT Capabilities flags (default 7)