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TUSB213-Q1

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SLLSF06 – SEPTEMBER 2017

Product Folder Links: TUSB213-Q1

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Copyright © 2017, Texas Instruments Incorporated

8.2.2.1 Test Procedure to Construct USB High Speed Eye Diagram

NOTE

USB-IF certification tests for High Speed eye masks require the mandated use of the

USB-IF developed test fixtures. These test fixtures do not require the use of oscilloscope

probes. Instead they use SMA cables. More information can be found at the USB-IF

Compliance Updates Page. It is located under the ‘Electricals’ section, ID 86 dated March

2013.

The following procedure must be followed before using any oscilloscope compliance software to construct a USB

High Speed Eye Mask:

8.2.2.1.1

For a Host Side Application

1. Configure the TUSB213-Q1 to the desired AC and DC Boost settings

2. Power on (or toggle the RSTN pin if already powered on) the TUSB213-Q1

3. Using SMA cables, connect the oscilloscope and the USB-IF host-side test fixture to the TUSB213-Q1

4. Enable the host to transmit USB TEST_PACKET

5. Execute the oscilloscope USB compliance software.

6. Repeat the above steps in order to re-test TUSB213-Q1 with a different settings

8.2.2.1.2

For a Device Side Application

1. Configure the TUSB213-Q1 to the desired AC and DC Boost settings

2. Power on (or toggle the RSTN pin if already powered on) the TUSB213-Q1

3. Connect a USB host, the USB-IF device-side test fixture, and USB device to the TUSB213-Q1. Ensure that

the USB-IF device test fixture is configured to the ‘INIT’ position

4. Allow the host to enumerate the device

5. Enable the device to transmit USB TEST_PACKET

6. Using SMA cables, connect the oscilloscope to the USB-IF device-side test fixture and ensure that the

device-side test fixture is configured to the ‘TEST’ position.

7. Execute the oscilloscope USB compliance software.

8. Repeat the above steps in order to re-test TUSB213-Q1 with a different settings