Texas Instruments TUSB522P Manual de usuario

SLLU244–August 2016

TUSB522P EVM

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User's Guide

SLLU244–August 2016

TUSB522P EVM

This is the user guide for the evaluation module (EVM) of the TUSB522P. The purpose of this user guide

is to facilitate an easy evaluation process of the TUSB522P USB 3.1 SuperSpeed (5 Gbps) Re-Driver.

The contents of this user’s guide are meant to provide an overview of the TUSB522P, including the key

features, operating conditions, and how to setup this EVM for use in a system level evaluation.

The construction of the TUSB522P EVM also serves as a reference design that can be easily modified for

any intended application. Target applications include cell phones, computers, docking stations, TVs, and

active cables. Schematic and layout information is included at the end of this manual.

Contents

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

2 TUSB522P EVM Configuration ............................................................................................ 3

2.1 Description of EVM Board......................................................................................... 3

2.2 TUSB522P Configuration Pins.................................................................................... 5

2.3 Monitoring the Device Current .................................................................................... 5

3 PCB Construction............................................................................................................ 6

3.1 TUSB522P EVM Board Schematics ............................................................................. 6

3.2 TUSB522P EVM Board Layout ................................................................................... 8

4 EVM Material Listing....................................................................................................... 12

List of Figures

1 TUSB522P Functional System Level Block Diagram................................................................... 2

2 EVM (Top Side).............................................................................................................. 3

3 TUSB522P EVM Schematic (High Speed Pins / Power)............................................................... 6

4 TUSB522P EVM Schematic (Device Control Pins) ..................................................................... 7

5 EVM Layout Layer 1 (Top) ................................................................................................. 8

6 EVM Layout Layer 2 (GND)................................................................................................ 9

7 EVM Layout Layer 3 (VCC)............................................................................................... 10

8 EVM Layout Layer 4 (Bottom)............................................................................................ 11

List of Tables

1 Jumper / Switch Description and Settings................................................................................ 4

2 TUSB522P Equalization Selection Table................................................................................. 5

3 TUSB522P Output Swing Amplitude...................................................................................... 5

4 TUSB522P De-Emphasis .................................................................................................. 5

5 Bill of Materials ............................................................................................................. 12

USB 3.1 Host/Source (Desktop, Laptop, Docking Station, etc)

USB 3.1 Type A Receptacle

USB 3.1 Type B Receptacle [INPUT]

USB 3.1 Type A Receptacle [OUTPUT]

USB 3.1 Type B Receptacle

USB 3.1

Type A ÆB

Cable

USB 3.1

Type A ÆB

Cable

USB 3.1 Device/Sink (External Hard Drive, Thumb Drive, etc)

TUSB522P EVM

Introduction

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TUSB522P EVM

1 Introduction

The TUSB522P is a dual channel, USB 3.1 SuperSpeed re-driver and signal conditioner supporting data

rates of 5.0 Gbps. The device complies with USB 3.1 spec revision 1.0, supporting electrical idle condition

and low frequency periodic signals (LFPS) for USB 3.1 power management modes.

The device offers programmable equalization that extends the interconnect distance between two devices.

Also, the device supports low power modes when unplugged. The device can also function in USB

compliance mode to test the transmitter for compliance to voltage and timing specifications per USB 3.1

compliance specs.

This EVM was designed to be used as a medium connection between a USB host and a USB device. The

interface to the EVM consists of a USB 3.1 Type A Receptacle and a USB 3.1 Type B Receptacle.

Therefore, in order to connect the EVM to your system set up, the user will most likely need 2 USB 3.1

Standard Type AMB cables. Your test setup should look similar to Figure 1.

Figure 1. TUSB522P Functional System Level Block Diagram

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TUSB522P EVM Configuration

SLLU244–August 2016

TUSB522P EVM

2 TUSB522P EVM Configuration

This EVM kit should contain the following items:

• TUSB522P EVM board

• This user’s manual

2.1 Description of EVM Board

The TUSB522P EVM is designed to provide easy evaluation of the TUSB522P device. It is also meant to

serve as a reference design to show a practical example of how to use the device in a mass-production

system. Figure 2 highlights the jumpers and switch installed on this EVM and Table 1 highlights their

functionality and configuration.

Figure 2. EVM (Top Side)

TUSB522P EVM Configuration

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Table 1. Jumper / Switch Description and Settings

Jumper Functionality and Configuration

EQ1

1-2 = 1 (1K to VCC)

3-4 = R (20K to GND)

5-6 = 0 (1K to GND)

NC = F (No Connect)

DE2

1-2 = 1 (1K to VCC)

3-4 = R (20K to GND)

5-6 = 0 (1K to GND)

NC = F (No Connect)

DE1

1-2 = 1 (1K to VCC)

3-4 = R (20K to GND)

5-6 = 0 (1K to GND)

NC = F (No Connect)

EQ2

1-2 = 1 (1K to VCC)

3-4 = R (20K to GND)

5-6 = 0 (1K to GND)

NC = F (No Connect)

OS2

1-2 = 1 (1K to VCC)

3-4 = R (20K to GND)

5-6 = 0 (1K to GND)

NC = F (No Connect)

NC2

1-2 = 1 (1K to VCC)

3-4 = R (20K to GND)

5-6 = 0 (1K to GND)

NC = F (No Connect)

NC1

1-2 = 1 (1K to VCC)

3-4 = R (20K to GND)

5-6 = 0 (1K to GND)

NC = F (No Connect)

OS1

1-2 = 1 (1K to VCC)

3-4 = R (20K to GND)

5-6 = 0 (1K to GND)

NC = F (No Connect)

J9/SW1 EN_RXD (Shutdown Mode)

1-2 = 1K to GND

NC = Internal Pull-up (Default)

SW1 = Push to Short EN to GND

J10 RSVD

1-2 = 1K to GND

NC = Internal Pull-up (Default)

J11 VCC 3.3V

1-2 = VCC_3.3V Provided from U2 (Default)

NC = Provide external 3.3 V on Pin 2

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TUSB522P EVM Configuration

SLLU244–August 2016

TUSB522P EVM

2.2 TUSB522P Configuration Pins

The equalization, output swing amplitude, and de-emphasis levels of each channel are configured via EQ,

DE and OS pin states. Table 2 through Table 4 list all possible levels that can be achieved with the

TUSB522P.

Table 2. TUSB522P Equalization Selection Table

Equalization Level

EQx Pin Level EQ Gain at 2.5 GHz (dB)

Low 3

Floating 6

High 9

Table 3. TUSB522P Output Swing Amplitude

Equalization Level

OSx Pin Level Transition Bit Output Differential Voltage (mV)

Low 900

High 1200

Table 4. TUSB522P De-Emphasis

DEx De-Emphasis Ratio (dB)

OS = Low OS = High

Low 0 –2.6

Floating –3.5 –5.9

High –6.2 –8.3

2.3 Monitoring the Device Current

The TUSB522P EVM includes the option of monitoring the current draw of the device. In order to enable

this feature, the following steps must be taken:

1. Un-install the shunt located at JMP11 and remove R26.

2. Obtain a power supply with the ability to display its current draw (or connect a current meter in series

to the power supply)

3. Connect to 3.3 V of external power source to VCC_3.3V (J11-2) and GND of the external supply to a

convenient GND location on the EVM (J10-2).

4. Turn on your power supply and observe the measured current on your power supply display (or current

meter)

Silkscreen:

3.3V VREG

Silkscreen:

J11-1 3.3V VREG

J11-2 VCC_3.3V

RX2P

RX2N

RX1N

RX1PTX1P

TX1P_Conn

TX1N

TX1N_Conn

TX2P TX2P_Conn

TX2N_Conn

TX2N

USB2_DM

USB2_DP

VBUS

CH2_EQ2

CH2_EQ1

SLP_S0#

CFG2

CFG1

CH1_EQ2

CH1_EQ1

MODERSVD1

3.3V

USB2_DM

USB2_DP

USB2_DM

USB2_DP

VBUS VBUS

NC1

EN_RXD

OS2

EQ2

DE1 OS1

RSV

EQ1

DE2

NC2

VCC_3.3V

VBUS

VBUS 3.3V VCC_3.3V

C4 0.1uF

C15

22uF

C3 0.1uF

C2 0.1uF

C1 0.1uF

C14

0.01uF

10uF

LED Green 0805

C13

0.01uF

10uF

C12

0.1uF

USB3 Type A Receptacle

VBUS

USB2_DM

USB2_DP

GND

SS_RX_N

SS_RX_P

GND_Drain

SS_TX_N

SS_TX_P

Shield1 10

Shield2 11

R28

300 Ohm

C11

0.1uF

C10

1uF

J11

HDR2X1 M .1

1 2

1uf

TUSB522PRGE

VCC

EQ1

DE2

OS2

EN_RXD

NC 7

RX1N 8

RX1P 9

GND 10

TX2N 11

TX2P 12

VCC 13

RSV 14

OS1 15

DE1 16

EQ2 17

NC 18

RX2P

RX2N

GND

TX1P

TX1N

PAD

USB3.0 Type B Receptacle

VBUS 1

USB2_DM 2

USB2_DP 3

GND 4

SS_TX_N 5

SS_TX_P 6

GND_DRAIN 7

SS_RX_N 8

SS_RX_P 9

Shield1

Shield2

R26 0 Ohm

LP5907

VIN

GND

VOUT 5

N/C 4

PCB Construction

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TUSB522P EVM

3 PCB Construction

This section discusses the construction of the EVM boards. It includes the board schematics and layout files to show how the board was built.

3.1 TUSB522P EVM Board Schematics

Figure 3 and Figure 4 illustrate the EVM schematics.

Figure 3. TUSB522P EVM Schematic (High Speed Pins / Power)

Silkscreen:

CH1_EQ1 Selection

1-2 = 1

3-4 = R

5-6 = 0

NC = F

Silkscreen:

CH1_EQ2 Selection

1-2 = 1

3-4 = R

5-6 = 0

NC = F

Silkscreen:

CH2_EQ1 Selection

1-2 = 1

3-4 = R

5-6 = 0

NC = F

Silkscreen:

CH2_EQ2 Selection

1-2 = 1

3-4 = R

5-6 = 0

NC = F

Silkscreen:

RSVD1 Selection

1-2 = 1

3-4 = R

5-6 = 0

NC = F

Silkscreen:

CFG2 Selection

1-2 = 1

3-4 = R

5-6 = 0

NC = F

Silkscreen:

CFG1 Selection

1-2 = 1

3-4 = R

5-6 = 0

NC = F

Silkscreen:

MODE Selection

1-2 = 1

3-4 = R

5-6 = 0

NC = F

Silkscreen:

RESET

Silkscreen:

SLP_S0#

Silkscreen:

CFG1

MODE

RSVD1

CFG2

CH1_EQ1

CH1_EQ2

CH2_EQ1

CH2_EQ2

SLP_S0#

VCC_3.3V

VCC_3.3VVCC_3.3V

VCC_3.3V VCC_3.3V

VCC_3.3V

HDR3X2 .1X.1

R16 1k

R25 1k

R15 1k

HDR3X2 .1X.1

R14 20k

HDR3X2 .1X.1

R13 1k

J10

HDR2X1 M .1

1 2

R12 1k

HDR3X2 .1X.1

HDR2X1 M .1

1 2

R11 20k

R10 1k

R9 1k

HDR3X2 .1X.1

R8 20k

R27

10k

C16

.22uF

SW1

Switch - Push Button

AA1

AA2

B1 B

R24 1k

R7 1k

R23 20k

R6 1k

HDR3X2 .1X.1

R22 1k

R5 20k

R21 1k

R4 1k

R20 20k

R3 1k

R2 20k

HDR3X2 .1X.1

R19 1k

R1 1k

R18 1k

R17 20k

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PCB Construction

SLLU244–August 2016

TUSB522P EVM

Figure 4. TUSB522P EVM Schematic (Device Control Pins)

PCB Construction

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3.2 TUSB522P EVM Board Layout

This EVM was designed to show the implementation on a 4-layer board. Figure 5 through Figure 8 display

the EVM PCB board layout.

Figure 5. EVM Layout Layer 1 (Top)

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PCB Construction

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TUSB522P EVM

Figure 6. EVM Layout Layer 2 (GND)

PCB Construction

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Figure 7. EVM Layout Layer 3 (VCC)

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