Texas Instruments TUSB1146 User manual

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TUSB1146 USB Type-C™ Enabler EVM
User's Guide
SLLU318–April 2020
TUSB1146 USB Type-C™ Enabler EVM
The TUSB1146 USB Type-C™ Alternate Mode re-driving switch supports data rates up to 10 Gbps for a
downstream facing port (host). This user's guide describes how to use the EVM and includes schematics
that can be used as a reference design for the alternate mode implementations of the host system with
the TUSB1146 device.
Contents
1 TUSB1146EVM-SRC........................................................................................................ 2
2 TUSB1146EVM Configuration ............................................................................................. 3
3 TUSB1146EVM Schematics ............................................................................................... 5
4 Bill of Materials ............................................................................................................. 10
List of Figures
1 TUSB1146EVM .............................................................................................................. 2
2 Test Board Setup............................................................................................................ 2
3 TUSB1146EVM Block Diagram ........................................................................................... 5
4 TUSB1146EVM Schematics (1 of 4) ..................................................................................... 6
5 TUSB1146EVM Schematics (2 of 4) ..................................................................................... 7
6 TUSB1146EVM Schematics (3 of 4) ..................................................................................... 8
7 TUSB1146EVM Schematics (4 of 4) ..................................................................................... 9
List of Tables
1 TUSB1146 Configuration Pins ............................................................................................ 3
2 Configuration Pin-Level Definitions........................................................................................ 3
3 USB 3.1 EQ Settings........................................................................................................ 3
4 DisplayPort EQ Settings .................................................................................................... 4
5 Bill of Materials ............................................................................................................. 10
Trademarks
USB Type-C is a trademark of USB Implementers Forum, Inc.
All other trademarks are the property of their respective owners.

DP Source
USB Host
USB
DP
Type-C
Type-C
USB DP
TUSB1146EVM TUSB1064EVM
USB Hub/Device
DP Branch/Sink
TUSB1146EVM-SRC www.ti.com
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TUSB1146 USB Type-C™ Enabler EVM
1 TUSB1146EVM-SRC
Figure 1 illustrated the EVM board.
Figure 1. TUSB1146EVM
The TUSB1146EVM can be used with a legacy DP Source or USB Host system to evaluate the USB
Type-C implementation. Figure 2 is a typical test setup
Figure 2. Test Board Setup
The EVM comes with a Micro B USB receptacle to connect to USB host systems and a DisplayPort
receptacle to connect to DisplayPort-capable source. The TUSB1146 EVM uses the Texas Instruments
TPS65987D controller for power delivery and CC pin control.

www.ti.com TUSB1146EVM Configuration
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2 TUSB1146EVM Configuration
This section provides the configuration options available in the TUSB1146EVM.
2.1 TUSB1146 EVM Default EQ Configuration
The headers in Table 1 are provided for TUSB1146 EQ configuration, by default the TUSB1146 EQ
settings are configured via I2C controlled by the TPS65987D. Alternatively, the TUSB1146 can be
configured using the TI SigCon Architect GUI using the TI USB2ANY or Aardvark I2C adapter connected
to connector P4.
Table 1. TUSB1146 Configuration Pins
Reference Designator JMP Control Configuration
JMP4 I2C_EN Install on pins 1-2
JMP13 SSEQ0/A0 Install on pins 2-3
JMP10 DPEQ0/A1 Install on pins 2-3
JMP22 I2C Adapter Select Install on pins 2-3
JMP24 Mux I2C/GPIO Select Install on pins 1-2
JMP5 EQ1 Install on pins 2-3
JMP2 EQ0 Install on pins 2-3
JMP12 SSEQ1 Install on pins 2-3
JMP8 DPEQ1 Install on pins 2-3
2.2 TUSB1146 EQ Control
Each of the TUSB1146 receiver lanes has individual controls for receiver equalization. Table 2,Table 3,
and Table 4 detail the gain values for each available combination for downstream, upstream, and all
DisplayPort configurations.
Table 2. Configuration Pin-Level Definitions
Level Settings
0 Option 1: Tie 1 kΩ5% to GND
Option 2: Tie directly to GND
R Tie 20 kΩ, 5% to GND
F Float (leave pin open)
1 Option 1: Tie 1 kΩ5% to VCC
Option 2: Tie directly to VCC
Table 3. USB 3.1 EQ Settings
USB3.1 Downstream Facing Ports USB3.1 Upstream Facing Port
EQ Setting
#EQ1 Pin Level EQ0 Pin Level EQ Gain @ 5 GHz (dB) SSEQ1 Pin Level SSEQ0 Pin Level EQ Gain @ 5 GHz (dB)
0 0 0 -1 0 0 -0.5
1 0 R 1.3 0 R 1.7
2 0 F 3 0 F 3.4
3 0 1 4.5 0 1 5
4 R 0 5.5 R 0 6
5 R R 6 R R 7
6 R F 7.5 R F 8
7 R 1 8.3 R 1 8.7
8 F 0 9 F 0 9.4
9 F R 9.5 F R 10

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Table 3. USB 3.1 EQ Settings (continued)
USB3.1 Downstream Facing Ports USB3.1 Upstream Facing Port
EQ Setting
#EQ1 Pin Level EQ0 Pin Level EQ Gain @ 5 GHz (dB) SSEQ1 Pin Level SSEQ0 Pin Level EQ Gain @ 5 GHz (dB)
10 F F 10 F F 10.6
11 F 1 10.5 F 1 11
12 1 0 11 1 0 11.5
13 1 R 11.3 1 R 11.9
14 1 F 11.6 1 F 12.1
15 1 1 12 1 1 12.5
Table 4. DisplayPort EQ Settings
All DisplayPort Lanes
EQ Setting # DPEQ1 Pin Level DPEQ0 Pin Level EQ Gain @ 5 GHz (dB)
0 0 0 -0.4
1 0 R 1.3
2 0 F 2.8
3 0 1 4.1
4 R 0 6.1
5 R R 6.2
6 R F 7.1
7 R 1 7.9
8 F 0 8.6
9 F R 9.2
10 F F 9.8
11 F 1 10.3
12 1 0 10.7
13 1 R 11.2
14 1 F 11.5
15 1 1 12
2.3 Power
The EVM is designed to operate off of the VBUS from a USB host connected via USB Micro B, P2. No
external power is to be applied via J5 unless standalone operation is desired.
If testing the DisplayPort only, or if bypassing VBUS power, the EVM must be powered via J1 (5-V, 1-A
input).

TUSB1146
TPS65987D
TPS7A4533/
TPS7A4501
5V
IN
USB
Micro-B
DP
Type-C
Connector
+5V DC
VBUS
SS USB
DisplayPort
DP/SS USB
I2C
VBUS/VCONN+5V DC
www.ti.com TUSB1146EVM Schematics
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3 TUSB1146EVM Schematics
Figure 3 displays the block diagram of the EVM.
Figure 3. TUSB1146EVM Block Diagram

TUSB1146EVM Schematics www.ti.com
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Figure 4 through Figure 7 show the EVM schematics.
Figure 4. TUSB1146EVM Schematics (1 of 4)

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Figure 5. TUSB1146EVM Schematics (2 of 4)

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Figure 6. TUSB1146EVM Schematics (3 of 4)

www.ti.com TUSB1146EVM Schematics
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Figure 7. TUSB1146EVM Schematics (4 of 4)

Bill of Materials www.ti.com
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4 Bill of Materials
Table 5. Bill of Materials
Designator Qty Value Part Number Manufacturer
C1,C2,C10,C11,C12,C13 6 220 nF GRM033R60J224ME15D Murata
C3,C6,C14,C15,C16,C17 6 330 nF GRM033R60J334ME90D Murata
C4,C7,C8,C9,C18,C21,C22,C24 8 100 nF GRM155R71E104KE14D Murata
C5,C19,C20 3 10 uF GRM155R60G106ME44D Murata
C23 1 .01 uF GRM155R71H103KA88D Murata
C25,C27,C28,C30 4 10 uF GRM188R61C106MA73D Murata
C26 1 1 uF GRM155C81A105KA12D Murata
C29 1 22 uF GRM188R61A226ME15D Murata
D1,D4 2 SCHOTTKY PMEG3050EP,115 NXP
D2,D5 2 LED Green LTST-C170KGKT LITE-ON TECHNOLOGY CORPORATION
D3 1 TPD1E10B06 TPD1E10B06DPYR Texas Instruments
JMP1,JMP16,JMP21,JMP23 4 Header 2x1 68001-402HLF FCI
JMP2,JMP4,JMP5,JMP8,JMP10,JMP12,JMP13,JMP17,
JMP18,JMP19,JMP20,JMP22,JMP24 13 Header 3x1 961103-6404-AR 3M
JMP3,JMP6,JMP7,JMP9,JMP11,JMP14,JMP15 7 HDR1x1 68001-401HLF FCI
J1 1 DC_PWR_JACK PJ-202AH CUI Inc.
PCB1 1 HSDC069 HSDC069 Any
P1 1 JAE DX07S024JJ2 DX07S024JJ2R1300 Jae
P2 1 USB3_Micro_B GSB343133HR Amphenol
P3 1 DP SINK-SIDE
CONNECTOR 472720001 Molex Inc
P4 1 Header 5x2 0.1"
Shroud RA thru-hole 30310-5002HB 3M
R1,R74 2 330 ERJ-2GEJ331X Panasonic Electronic Components
R2,R3,R4,R5,R6,R7,R8,R9 8 1 ERJ-1GNJ1R0C Panasonic Electronic Components
R10,R11 2 2 M ERJ-2GEJ205X Panasonic Electronic Components
R12,R13,R14,R21,R22,R23,R24,R69 8 1 k ERJ-2GEJ102X Panasonic Electronic Components
R15,R17,R19,R25,R27,R29,R31 7 20 k ERJ-2GEJ203X Panasonic Electronic Components
R16,R18,R20,R26,R28,R30,R32,R34,R59,R63 10 0 ERJ-2GE0R00X Panasonic Electronic Components
R33,R38 2 22 ERA-2AKD220X Panasonic Electronic Components
R35,R36,R37,R53,R54,R57,R58,R64,R65,R67,R68 11 3.3 k ERJ-2GEJ332X Panasonic Electronic Components
R39,R42,R43,R44,R46,R47,R48,R49,R50,R51,R55,R60
,R61,R62 14 100 k ERJ-2GEJ104X Panasonic Electronic Components
R40,R41 0 10 k DNI ERJ-2GEJ103X Panasonic Electronic Components
R45 1 100 ERA-2AED101X Panasonic Electronic Components
R52,R56,R70 3 10k ERJ-2GEJ103X Panasonic Electronic Components