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EVM User's Guide: TUSB2E221EVM
TUSB2E221 Evaluation Module
Description
The TUSB2E221EVM is designed to facilitate
evaluation and validate the performance of
the TUSB2E221 2-port eUSB repeater. The
TUSB2E221EVM incorporates two micro-A/B USB
2.0 ports to connect to USB compliant hosts, hubs
or devices. The EVM also has two sets of SMP
connectors to interface with another eUSB2 PHY or
test equipment.
SNLU346 – MAY 2024
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Features
•
Plug and play design
•
The evaluation module (EVM) is powered by USB
or Wall Power
•
All device pin configuration options can be
evaluated on the EVM
2
•
I
C interface accessible
Applications
•
Communications equipment
•
Enterprise systems
•
Notebooks and desktops
•
Industrial
•
Tablets
•
Portable electronics
Copyright © 2024 Texas Instruments Incorporated
Description
TUSB2E221 Evaluation Module
1
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Summary of Contents for Texas Instruments TUSB2E221EVM
- Page 1 Description EVM User's Guide: TUSB2E221EVM TUSB2E221 Evaluation Module Description Features The TUSB2E221EVM is designed to facilitate • Plug and play design evaluation and validate the performance of • The evaluation module (EVM) is powered by USB the TUSB2E221 2-port eUSB repeater. The...
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Page 2: Kit Contents
Host or eUSB device. For more information about configuration, refer to the Embedded USB2 (eUSB2) Physical Layer Supplement to the USB Revision 2.0 Specification. The diagrams shown below describe the system setup using the TUSB2E221EVM with an eUSB host or an eUSB peripheral. -
Page 3: Device Information
Various headers are located on the EVM with prepopulated headers to support configuring the TUSB2E221. Two LDOs are also present on the TUSB2E221EVM to generate the 3.3V and 1.8V supplies to the TUSB2E221. The TPS73633 steps down the 5V supply to 3.3V to provide power to the TUSB2E221 as well as the TPS73601. - Page 4 Before getting started, make sure that power is not supplied to the system and proper ESD protective measures are in place. 1. Connect to eUSB Port 0- The TUSB2E221EVM has two eUSB ports to connect to an eUSB host or device via SMP cable. The eUSB host or device is responsible for configuring TUSB2E221 through the eUSB...
- Page 5 The TUSB2E221 requires two supply voltages during normal operation. The 3.3V and 1.8V supply can be provided directly from an external source on pin 1 of the J14 and J16 headers. The TUSB2E221EVM also includes two onboard LDOs which generate 3.3V and 1.8V from a 5V power supply. The 5V supply can be provided through the micro-AB USB connectors, or provided via a 5V wall power supply.
- Page 6 TUSB2E221 is configured as a bus-powered device. 2.2.1.3 External Power Alternately to providing a 5V power source to the TUSB2E221EVM, a 3.3V and 1.8V power supply can be provided directly to the TUSB2E221 device.
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Page 7: Functional Modes
Hardware 2.2.2 Functional Modes Figure 2-2. TUSB2E221EVM Configuration Overview The TUSB2E221 has 3 functional modes, I2C-enabled, GPIO, and UART. Figure 2-2 show the locations of each header and switch used to configure the TUSB2E221. 2.2.2.1 I2C-Enabled Repeater Mode In I2C-enabled repeater mode, the EVM can be configured through register settings. EQ0 and EQ1 must be set high. - Page 8 The TUSB2E221 can be configured to use either 1.8V or 1.2V I/O voltages. SW2 on the EVM controls the VIOSEL pin. To modify the signaling refer to Table 2-8. Changing this setting modifies the threshold voltage of the EQ0, EQ1, EQ2/INT, SCL and SDA pins. Table 2-8. TUSB2E221EVM I/O Voltage Switch SW3 position I/O voltage 1-2 (bottom) 1.2V 2-3 (top) 1.8V...
- Page 9 Hardware Design Files 3 Hardware Design Files 3.1 Schematic Figure 3-1. TUSB2E221EVM Schematic SNLU346 – MAY 2024 TUSB2E221 Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
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Page 10: Board Layout
Hardware Design Files www.ti.com 3.2 Board Layout The TUSB2E221EVM was laid out with the following considerations: • USB 2.0 signals impedance controlled 90Ω differential ± 5%. • eUSB2 signals impedance controlled 45Ω signal ended ± 5%. • USB 2.0 and eUSB2 signal pairs routed with matched trace lengths and minimal vias. - Page 11 Hardware Design Files Figure 3-5. TUSB2E221EVM Layer 4 (Bottom) Figure 3-4. TUSB2E221EVM PCB Layer 3 (Power Plane) SNLU346 – MAY 2024 TUSB2E221 Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
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Page 12: Bill Of Materials
Hardware Design Files www.ti.com 3.3 Bill of Materials The default devices installed on the TUSB2E221EVM are listed in this section. Table 3-1. Bill of Materials DESIGNATOR VALUE PART NUMBER MANUFACTURER 47uF C3225X5R1A476M250AC C2,C5,C7,C8,C10,C17,C20,C21 .1uF CC0402KRX5R6BB104 Yageo C3,C4 2.2uF CGA4J3X7R1C225K125AB C6,C9,C14,C16,C22,C23 .01uF... - Page 13 STANDARD TERMS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein.
- Page 14 www.ti.com Regulatory Notices: 3.1 United States 3.1.1 Notice applicable to EVMs not FCC-Approved: FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and software developers to write software applications for use with the end product.
- Page 15 www.ti.com Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à...
- Page 16 www.ti.com EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS. 4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling or using the EVM, including without limitation any warning or restriction notices.
- Page 17 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2023, Texas Instruments Incorporated...
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Page 18: Important Notice
TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2024, Texas Instruments Incorporated...
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