Application Examples About Application Examples
About Application Examples
This section presents the application examples. The simplified examples highlight the application
measurements and show how to use the application to solve your test problems.
To use these examples, you must have the TDSUSB2 application installed and enabled on the oscilloscope.
Connect the probes to your unit under test (UUT), and perform the configuration tasks.
See Also
Starting the Application
Instal
ling the Application
Specifying the EquipmentFull Speed Signal Quality Tests for Upstream Testing
Selecting and Configuring Measurements-Droop Tests
Selecting and Configuring Measurements-Full Speed Signal Quality Tests for Upstream Testing
Selecting and Configuring Measurements-Inrush Current Test
Selecting and Configuring Measurements-Inrush Current Test
Selecting and Configuring Measurements-Signal Quality Tests for High Speed Devices for Upstream
Testing
Specifying the Equipment-Full Speed Signal Quality Downstream Tests
The following equipment is needed for downstream signal quality check on a Full Speed device testing:
Tektronix digital oscilloscope
TDSUSB2 application
TDSUSBF compliance test fixture (Revision B)
Three of the following single-ended voltage probes: P6245, P6243, TDP1500, TDP3500, or TAP1500.
Typical Equipment Setup-Full Speed Signal Quality Downstream Tests
To set up the equipment for Full Speed Signal Quality Downstream test, follow these steps:
1. Set the S6 switch to the Init position.
2. Use the adapters to connect the A receptacle from Device SQ test section (marked DUT) of the
test fixture to the USB2.0 Low Speed device.
3. Connect Ch1 of the D+ probe to the D+ pins on the Device SQ section of the test fixture.
TDSUSB2 Universal Serial Bus Measurements Package 67
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