Texas Instruments TUSB2E11 Manuale utente

User’s Guide

TUSB2E11 Evaluation Module User's Guide

ABSTRACT

This is the user's guide for the evaluation module (EVM) of the TUSB2E11 single channel eUSB2 to USB

2.0 repeater. The purpose of the user's guide is to facilitate easy set up for validation and development of

the TUSB2E11 device. An overview of the TUSB2E11EVM is provided in this user’s guide, which includes

highlighting its key features, operating conditions, and how to adjust the EVM for use in various systems.

Table of Contents

1 Introduction.............................................................................................................................................................................2

2 EVM Quick Setup Instructions...............................................................................................................................................2

3 EVM Configuration Using Jumpers.......................................................................................................................................3

3.1 Default EVM Configuration.................................................................................................................................................3

3.2 EVM Power Configuration..................................................................................................................................................3

3.3 TUSB2E11 Functional Modes............................................................................................................................................ 4

4 TUSB2E11EVM Internal Lab Use Only.................................................................................................................................. 4

5 Layout Notes........................................................................................................................................................................... 4

6 Schematic................................................................................................................................................................................5

7 Bill of Materials....................................................................................................................................................................... 6

List of Figures

Figure 2-1. TUSB2E11EVM Block Diagram.................................................................................................................................2

Figure 6-1. TUSB2E11EVM Schematic....................................................................................................................................... 5

List of Tables

Table 3-1. TUSB2E11 Configuration Pins....................................................................................................................................3

Table 7-1. TUSB2E11EVM Bill of Materials................................................................................................................................. 6

Trademarks

All trademarks are the property of their respective owners.

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TUSB2E11 Evaluation Module User's Guide 1

1 Introduction

The TUSB2E11EVM is designed for the TUSB2E11 device, which is an USB 2.0 compliant eUSB2 to USB 2.0

repeater supporting both device and host modes, as well as dual role applications. The TUSB2E11 repeater

supports USB 2.0 low speed (LS) and full speed (FS) signals and high speed (HS) signals.

2 EVM Quick Setup Instructions

To start using the TUSB2E11EVM, the EVM requires power, a USB connection, and an eUSB2 connection:

• The TUSB2E211EVM incorporates a Micro-AB USB 2.0 port that can be used to connect the USB signals of

the repeater to a standard USB host, hub, or devices. 5M cable lengths are supported.

• For eUSB2, the EVM has a pair of SMP connectors for connecting eUSB2 signals to eUSB2 SoCs or test

equipment.

• Depending on the switch settings, the EVM can be powered from an external 5 V wall supply, bench power

supplies, or even through the USB connector.

• The TUSB2E11EVM also incorporates an external reset push button in addition to a regular power reset

circuit.

Figure 2-1. TUSB2E11EVM Block Diagram

Introduction www.ti.com

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3 EVM Configuration Using Jumpers

Table 3-1 lists the headers provided for configuration of the TUSB2E11 by default.

Table 3-1. TUSB2E11 Configuration Pins

Reference Designator JMP Control Configuration

J1 [1, 2] VBUS Enable USB VBUS

J2 [1, 2] and J7 [1, 2] SDA. SCL Enable I2C Mode

J3 [1, 2] UART Enable repeater mode

J12 – install 5 V to VBUS Enable 5 V to VBUS

J13, J14 – install 3.3 V Enable 3.3 V LDO

J15, J16 – install 1.8 V Enable 1.8 V LDOs

3.1 Default EVM Configuration

When the TUSB2E11EVM is shipped, it is configured to be either wall powered from a 5 V source connected to

J11 or bus powered through the USB connector, J9. The 5 V wall power supply from CUI, Digikey# 102-3584-N,

or similar can be used. Please note that if a 5 V supply is connected to J11, VBUS will be supplied on the J9

USB connector unless the jumper on J1[1, 2] is removed.

I2C mode is enabled by default on the EVM. The pullups on SDA and SCL are installed through the jumpers on

J2 [1,2] and J7 [1,2]. A 1.8 V I2C master can be connected to the SDA, SCL, and GND connections at J6 and

access the TUSB2E11 at address 3Eh. Also, the TUSB2E11EVM is set to repeater mode by J3 [1, 2].

All power jumpers are installed by default (J13, J14, J15, and J16). These can be removed to externally supply

power or take current measurements.

3.2 EVM Power Configuration

3.2.1 Power Options

As noted earlier, the TUSB2E11EVM can configured to be either wall powered from a 5 V source connected to

J11 or bus powered through the USB connector, J9. The 5 V wall power supply from CUI, Digikey# 102-3584-N,

or similar can be used.

3.2.2 Host Mode

When the TUSB2E11EVM is connected to an eUSB2 SoC that is in host mode, it should supply 5 V VBUS on

its USB connector. A 5 V source should be connected to J11 or through a bench supply to J12. The J1 jumper

should be installed on pins 1 and 2 to route the 5 V VBUS to the USB connector.

3.2.3 Device Mode – Self Powered

When the TUSB2E11EVM is connected to an eUSB2 SoC that is in device mode, it should not supply 5 V VBUS

on its USB connector. The TUSB2E11EVM can be powered from the USB connector or it can be self powered. If

it is self powered, the jumper on J12 should be removed. A 5 V source should be connected to J11 or through a

bench supply to pin 2 of J12. The J1 jumper should be removed from pins 1 and 2.

3.2.4 Device Mode – Bus Powered

When the TUSB2E11EVM is connected to an eUSB2 SoC that is in device mode, it should not supply 5 V VBUS

on its USB connector. The TUSB2E11EVM can be powered from the USB connector or it can be self powered. If

it is bus powered, the jumper on J12 should be installed and the J1 jumper should be installed on pins 1 and 2 to

route the 5 V from the USB connector to the EVM.

www.ti.com EVM Configuration Using Jumpers

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TUSB2E11 Evaluation Module User's Guide 3

3.3 TUSB2E11 Functional Modes

3.3.1 I2C Mode

When SDA and SCL are pulled high at reset, the TUSB2E11 is in I2C Mode, where the TUSB2E11 typically acts

as an eUSB2 to USB repeater. The repeater can be further configured using the 1.8 V I2C interface accessible

at J6. I2C configuration, however, is not required for the repeater to operate. Please note that GPIO0 must be

pulled high for normal I2C repeater mode operation.

3.3.2 GPIO Mode

The TUSB2E11 repeater can also be configured by strap settings instead of I2C. When SCL is low at reset,

the TUSB2E11 will use the strap settings on the GPIOs to determine the repeater configuration. Please see the

TUSB2E11 data sheet for more information.

3.3.3 UART Mode

In UART mode, the TUSB2E11 acts a UART to UART repeater to support in-system debug. UART mode can

be entered by pulling the GPIO0 low when the TUSB2E11 is in I2C mode or by setting SCL high and SDA low

at reset, and setting the GPIO0 low. If SCL is high and SDA is low at reset, and GPIO0 is pulled high, then the

TUSB2E11 will be in a non-functional state.

4 TUSB2E11EVM Internal Lab Use Only

There are several features of the TUSB2E11EVM that are reserved for internal lab use only.

1. Under normal use conditions, the resistor on R18 should not be installed. In addition, adding the resistors and

capacitor, R12, R14, and C3 is not recommended for end users.

2. 1.2 V IO operation is not enabled on the default TUSB2E11EVM.

3. The VBUS control functions implemented by U5 and U6 are not currently supported.

5 Layout Notes

The TUSB2E11EVM was laid out with the following considerations:

• USB signals impedance controlled 90 Ω differential ± 5%

• eUSB signals impedance controlled 45 Ω signal ended ± 5%

• USB 2.0 and eUSB signal pairs routed with matched trace lengths and minimal vias.

• All other signals to be impedance controlled 45 Ω ± 10% or 50 Ω ± 10%

General information about the PCB is provided below:

• Finished board thickness: .062 ± 10% – necessary for socket

• Copper weight: 1 oz start internal, 1/2 oz start external

• Laminate material: FR4 Polyclad 370 or equivalent

A four layer stack-up was used for the TUSB2E11EVM.

Drill notes on board stack up to account for the small BGA breakout:

1. L1 – L2 (laser drill) used for small pitch BGA break out

2. L2 – L3 (mechanical drill) completes the small pitch BGA breakout

3. L3 – L4 (laser drill) for VPP

EVM Configuration Using Jumpers www.ti.com

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6 Schematic

Main page schematic of the TUSB2E11EVM

Figure 6-1. TUSB2E11EVM Schematic

www.ti.com Schematic

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TUSB2E11 Evaluation Module User's Guide 5

7 Bill of Materials

Table 7-1 lists the devices installed on the TUSB2E11EVM. The devices that are in the schematic, but are not installed on the EVM, are still listed in the

bill of materials (BOM) and are marked with DNI under the Part column.

Table 7-1. TUSB2E11EVM Bill of Materials

Item Quantity Reference Part Manufacturer Manufacturer Part Number

1 5 C1, C4, C5, C7, and C19 .1 µF Yageo CC0402KRX5R6BB104

2 1 C2 2.2 µF TDK CGA4J3X7R1C225K125AB

3 1 C3 .1 µF – DNI(1) Yageo CC0402KRX5R6BB104

4 5 C6, C9, C13, C15, and C16 .01 µF Kemet C0402C103K3RACTU

5 1 C8 47 µF TDK C3225X5R1A476M250AC

6 2 C10 and C12 1 µF Kemet C0805C105K4RACTU

7 3 C11, C14, and C17 10 µF Kemet C0805C106K8PACTU

8 1 C18 22 µF Murata GRM21BR61A226ME51L

9 1 JP1 HDR3X2 Sullins PEC03DAAN

10 6 J1, J2, J3, J4, J6, and J7 HDR3X1 Sullins PEC03SAAN

11 6 J5, J12, J13, J14, J15, and

J16

HDR2X1 Sullins PEC02SAAN

12 2 J8 and J10 SMP Rosenberger 19S201-40ML5

13 1 J9 USB Micro AB Amphenol FCI 10104111-0001LF

14 1 J11 DC JACK CUI PJ1-022-SMT-TR

15 1 PCB1 HSDC090 Any HSDC090

16 2 R1 and R9 1K Yageo RT0402BRE071KL

17 3 R2, R3, and R4 20K Yageo RC0402JR-0720KL

18 1 R5 100K Yageo RC0402JR-07100KL

19 2 R6 and R24 10K Yageo RC0402FR-0710KP

20 1 R7 1M Yageo RC0402FR-071ML

21 1 R8 36K Yageo RC0402JR-0736K

22 2 R10 and R17 0 Vishay Dale CRCW02010000Z0ED

23 1 R11 90.9 Stackpole RMCF0402FT90R9

24 2 R12 and R14 90.9 – DNI(1) Stackpole RMCF0201FT90R9

25 1 R13 2K Stackpole RMCF0402FT2K00

26 1 R15 2.2K Yageo RC0402FR-072K2L

27 1 R16 5.6K Stackpole RMCF0402FT5K60

28 1 R18 0 – DNI(1) Yageo RC0402JR-070RL

29 1 R19 0 Yageo RC0402JR-070RL

30 2 R20 and R22 28.0K Yageo RC0402FR-0728KL

Schematic www.ti.com

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Table 7-1. TUSB2E11EVM Bill of Materials (continued)

Item Quantity Reference Part Manufacturer Manufacturer Part Number

31 2 R21 and R23 56.2K Yageo RT0402BRD0756K2

32 4 SCRW1, SCRW2, SCRW3,

and SCRW4

NY PMS 440 005 PH B&F Fastener NY PMS 440 0050 PH

33 13 SHNT1, SHNT2, SHNT3,

SHNT4, SHNT5, SHNT6,

SHNT7, SHNT8, SHNT9,

SHNT10, SHNT11, SHNT12,

and SHNT13

QPC02SXGN-RC Sullins QPC02SXGN-RC

34 4 STDOFF1, STDOFF2,

STDOFF3, and STDOFF4

1902E Keystone 1902E

35 1 SW1 PB Switch OMRON B3U-1000P

36 1 TP1 TEST POINT TE Connectivity RCU-0C

37 1 U1 TUSB2E11 Texas Instruments TUSB2E11YCG

38 1 U2 TPS73633 Texas Instruments TPS73633DRB

39 2 U3 and U4 TPS73601 Texas Instruments TPS73601DRB

40 1 U5 SN74AUP1T34 Texas Instruments SN74AUP1T34DCKR

41 1 U6 TPS2001D Texas Instruments TPS2001DDBVR

(1) This device is in the schematic, but is not installed on the EVM

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TUSB2E11 Evaluation Module User's Guide 7

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IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD

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These resources are intended for skilled developers designing with TI products. You are solely responsible for (1) selecting the appropriate

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These resources are subject to change without notice. TI grants you permission to use these resources only for development of an

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