Measurement Algorithms
Figure 121: Equipment setup for Low Speed Signal Quality for HUB Downstream
Full Speed Signal Quality HUB Downstream Setup
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.
4.
Connect Ch2 of the D–
probe to the D– pins on the Device SQ section of the
test fixture.
5.
Connect the Init port of the Device SQ section of the test fixture to any
port
of the unit under test (hub) using the USB cable.
6.
Select the measurement and select the
command button to run the
application.
7.
Select OK after acquiring a waveform. Verify that it is a correct waveform.
204
TDSUSB2 Universal Serial Bus Measurement Package
Summary of Contents for TDS5032
Page 1: ...TDSUSB2 Universal Serial Bus Measurement Package 077 0015 04 www tektronix com...
Page 12: ......
Page 24: ...Getting Started 10 TDSUSB2 Universal Serial Bus Measurement Package...
Page 32: ...Installation 18 TDSUSB2 Universal Serial Bus Measurement Package...
Page 61: ...Operating Basics TDSUSB2 Universal Serial Bus Measurement Package 47...
Page 76: ...Taking Measurements 62 TDSUSB2 Universal Serial Bus Measurement Package...
Page 88: ...Tutorial 74 TDSUSB2 Universal Serial Bus Measurement Package...
Page 158: ...Application Examples 144 TDSUSB2 Universal Serial Bus Measurement Package...
Page 228: ...Measurement Algorithms 214 TDSUSB2 Universal Serial Bus Measurement Package...
Page 248: ...Glossary 234 TDSUSB2 Universal Serial Bus Measurement Package...
