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Texas Instruments TUSB8044RGCEVM (Rev. A) User guides
User's Guide
SLLU261A – April 2017 – Revised December 2018
TUSB8044RGC Evaluation Module
TI's TUSB8044RGC evaluation module (EVM) is a functional board design that implements both a USB
3.0 hub and a USB 2.0 hub. The EVM can support both USB SuperSpeed (SS) and USB 2.0 high-speed
(HS), full-speed (FS), or low-speed (LS) operation on its USB ports. The EVM enumerates a Billboard
device on a virtual downstream port for USB Type-C™ applications with alternate mode support. It has an
I2C Master controllable through an HID-compliant device enumerated on a virtual downstream port. This
EVM is intended for use in evaluating system compatibility, developing optional EEPROM firmware, and
validating interoperability. This EVM also acts as a hardware reference design for any implementation of
the TUSB8044.
Contents
1
Introduction ...................................................................................................................
2
Hardware Overview..........................................................................................................
3
Hardware Setup ..............................................................................................................
Appendix A
TUSB8044RGC REVD EVM Bill of Materials ...................................................................
Appendix B
TUSB8044RGC REVD EVM Schematics .......................................................................
2
3
5
7
9
List of Figures
.................................................................................
1
TUSB8044RGC EVM Top Layer Layout
2
TUSB8044RGC REVD EVM Top Layer Layout ......................................................................... 9
2
3
USB Port Connections..................................................................................................... 10
4
Power ........................................................................................................................ 11
List of Tables
1
Switch Definitions ............................................................................................................ 5
2
TUSB8044 QFN Lab EVM Bill Of Materials: Texas Instruments, CCI and ICP ..................................... 7
Trademarks
Microsoft, Windows are registered trademarks of Microsoft Corporation.
USB Type-C is a trademark of USB Implementer's Forum.
All other trademarks are the property of their respective owners.
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1
Introduction
1
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Introduction
Upon request, layout files for the EVM can be provided to illustrate techniques used to route the
differential pairs, use of split power planes, placement of filters and other critical components, and
methods used to achieve length matching of critical signals.
NOTE: The EVM accommodates various lab test components; actual production implementations
can be much smaller.
Figure 1 illustrates the TUSB8044RGC EVM top layer layout.
Figure 1. TUSB8044RGC EVM Top Layer Layout
2
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Hardware Overview
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2
Hardware Overview
The TUSB8044RGCEVM board hardware can be divided into the following functional areas:
2.1
TUSB8044RGC
The TUSB8044 on the TUSB8044 EVM (U1 on the schematic) operates as a functional interconnect
between an upstream connection to a USB host or hub and up to four directly connected downstream
devices or hubs. More devices and hubs can be supported if arranged in tiers. The TUSB8044 is capable
of supporting operation at USB SuperSpeed (SS), high speed (HS), full speed (FS), or low speed (LS). In
general, the speed of the upstream connection of the TUSB8044RGCEVM limits the downstream
connections to that speed (SS, HS, and FS), or lower.
The TUSB8044 enumerates a Billboard device on a virtual downstream port for USB Type-C applications
with alternate mode support. It also has an I2C Master controllable through an HID compliant device
enumerated on a virtual downstream port.
The TUSB8044 requires a 24-MHz low-ESR crystal, Y1, with a 1-MΩ feedback resistor. The crystal should
be in fundamental mode with a load capacitance of 12 to 24 pF and a frequency stability rating of ±100
PPM or better. To ensure a proper startup oscillation condition, TI recommends a maximum crystal
equivalent series resistance (ESR) of 50 Ω.
The TUSB8044 can also use an oscillator or other clock source. When using an external clock source
such as an oscillator, the reference clock should have ±100 PPM (or better) frequency stability and have
less than 50-ps absolute peak-to-peak jitter (or less) than 25-ps peak-to-peak jitter after applying the USB
3.0 jitter transfer function.
2.2
USB Port Connectors
The TUSB8044 EVM is equipped with five standard 9-pin USB 3.0 port connectors. One of these five
connectors, J1, is a Type B connector designed to interface with an upstream USB host or hub. The
remaining connectors, J2, J3, J4, and J5, are Type A connectors for connection to downstream devices or
hubs. Standard size connectors were used on the EVM design, but USB micro connectors can be used, if
desired.
The USB ports can be attached through a standard USB cable to any USB 3.0 or legacy USB host, hub,
or device. The TUSB8044 will automatically connect to any upstream USB 3.0 host or hub at both SS and
HS. Using a legacy USB cable between the TUSB8044 EVM and a USB 3.0 host or hub forces it to HS
operation. The same is true if a legacy USB cable is used between the TUSB8044 EVM and a
downstream SS-capable device; operation will be limited to USB 2.0 HS.
2.3
USB Port Connector – Power
VBUS is received from the upstream host or hub on J1. The TUSB8044 is configured as a self-powered
hub, so there is not any significant current draw by the EVM from VBUS. The TUSB8044 does monitor the
VBUS input after filtering through a resistor divider network of a 90.9-kΩ, 1% resistor, R2, and a 10-kΩ,
1% resistor, R3. VBUS cannot be directly connected to the TUSB8044 device. A bulk capacitor of at least
1 μF is required on the upstream port VBUS input to comply with the USB specification. The
TUSB8044EVM uses a 10-μF capacitor, C35.
VBUS, sourced by the 5-V wall power input, J6, is provided to the downstream port connectors. The USB
3.0 specification limits the current consumption of a USB 3.0 device to 900 mA at 5 V. The current limiting
parameter of the TPS2001C devices, U7, U8, U9, and U10, is 2 A to avoid any spurious overcurrent
events due to bus-powered HDD spin-up power fluctuations or unnecessary limiting during USB charging.
A production implementation could place stricter limits on this power consumption. An overcurrent event
on any of the downstream port connectors will be reported to the TUSB8044 through the OVERCURxZ
inputs.
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Hardware Overview
2.4
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USB Port Connector – Noise Filtering
Each downstream VBUS output has a 150-μF bulk capacitor (C70, C71, C76, C79) as recommended by
the TPS2001C data manual (SLVSAU6) to prevent in-rush current events on the downstream devices. In
addition, there are ferrite beads and small capacitors on the VBUS lines to reduce noise and address ESD
and EMI concerns.
The TUSB8044EVM also implements optional isolation using two small noise-filtering capacitors and a 1MΩ resistor between the earth ground of each connector and the digital ground of the EVM; this is not a
requirement, but should be used if ground isolation is desired.
NOTE: Note that the series capacitors implemented on the SS TX pairs are incorporated to satisfy
the USB 3.0 requirement that differential links be AC coupled on the transmit pair.
2.5
Optional Serial EEPROM
Each TUSB8044EVM is equipped with an onboard EEPROM or socket placeholder, U2. A small I2C
EEPROM can be installed to set the configuration registers as defined in the TUSB8044 data manual
(SLLSEW5). In its default setting, the EVM does not have an EEPROM installed and instead uses the
configuration inputs to determine any optional settings of the TUSB8044.
The EEPROM interface defaults to programmable (not write-protected) so that any installed contents on
the EEPROM may be modified to test various settings. If an EEPROM data change is required, the values
may be changed using the register access methods outlined in the TUSB8044 data sheet. In addition, a
Microsoft® Windows® based EEPROM utility is available upon request.
2.6
Power
The TUSB8044 EVM operates from the power provided by a 5-V wall power adapter, J6, not bus power
supplied by a USB host. TI recommends to use a wall power adapter that is capable of sourcing 2 to 3 A
because the hub must be able to source significant power on its downstream ports (900 mA per port).
The TUSB8044 EVM uses a single-channel LDO voltage regulator to drop 5 V to 3.3 V. The TPS7A4533,
U4, is a 1.5-A output linear regulator (SLVS720). The 1.1-V core voltage required by the TUSB8044 is
sourced by the 3.3-V rail to reduce unnecessary heat dissipation. The TPS74801, U6, is a 1.5-A output
single channel LDO linear regulator (SBVS074). Both regulators require few external passive components
and are appropriately rated for heat dissipation.
2.7
Hub Configuration
The TUSB8044EVM can be configured by setting several inputs to the TUSB8044 that are sampled at
power-on reset or using an optional serial EEPROM or SMBUS host. A production implementation without
EEPROM or SMBUS could either rely on the default internal pullup or pulldown resistor for each
configuration input or override it with an external pullup or pulldown resistor. The settings can be modified
using SW1 and SW2 on the EVM. Descriptions of the possible configuration changes are included in
Section 3.1.
2.8
Optional Circuitry
The TUSB8044 EVM design implements a variety of LEDs, none of which are required by the USB
specification. They are provided to make testing and debugging easier.
• D1 – indicates that the upstream USB port power is on
• D4 – indicates that 3.3 V is being applied to the TUSB8044 EVM
• D5 – indicates downstream USB port 1 power is on
• D6 – indicates downstream USB port 2 power is on
• D7 – indicates downstream USB port 3 power is on
• D8 – indicates downstream USB port 4 power is on
The switches (SW1, SW2, and SW3) and headers (J7, J8, J9) present on the TUSB8044 EVM are
intended only for lab evaluation and are not required for production designs.
4
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Hardware Setup
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3
Hardware Setup
3.1
Configuration Switch
The TI TUSB8044EVM has a set of switches to facilitate configuration changes. TI does not recommend
changing these switch settings without a complete understanding of the result. Configuration inputs are
only read by the TUSB8044 during power-on reset, changing the switch settings while the EVM is
powered on will have no effect. For additional information, refer to the EVM schematic in Appendix B.
The switch definitions are shown in Table 1.
Table 1. Switch Definitions
Switch
Standard
SW1_1
Off
Definition
TEST_TRSTz Switch
The TUSB8044 has an internal pulldown on this terminal. If the switch is set to the ON position, the terminal is pulled high
and test mode is enabled. This is a production test mode only.
SW1_2
Off
SMBUSz Switch
The TUSB8044 has an internal pullup on this terminal, so I2C interface mode is enabled by default. If the switch is set to the
ON position, the terminal is pulled low and SMBUS mode is enabled.
SW1_3
Off
SCL_SMBCLK Switch
The TUSB8044 has an internal pulldown on this terminal, so the serial EEPROM or SMBUS interface is disabled. If the
switch is set to the ON position, a pullup resistor is connected to the serial clock terminal to indicate that an I2C EEPROM
may be attached (along with a pullup resistor on SDA).
SW1_4
Off
SDA_SMBDAT Switch
The TUSB8044 has an internal pulldown on this terminal, so the serial EEPROM or SMBUS interface is disabled. If the
switch is set to the ON position, a pullup resistor is connected to the serial clock terminal to indicate that an I2C EEPROM
may be attached (along with a pullup resistor on SCL).
SW1_5
Off
PWRON1_BATEN1 Switch
The TUSB8044 has an internal pulldown on this terminal, so USB battery charging mode on Port 1 is disabled by default. If
the switch is set to the ON position, the terminal is pulled high and battery charging is enabled on downstream port 1.
SW1_6
Off
PWRON2_BATEN2 Switch
The TUSB8044 has an internal pulldown on this terminal, so USB battery charging mode on Port 2 is disabled by default. If
the switch is set to the ON position, the terminal is pulled high and battery charging is enabled on downstream port 2.
SW1_7
Off
PWRON3_BATEN3 Switch
The TUSB8044 has an internal pulldown on this terminal, so USB battery charging mode on Port 3 is disabled by default. If
the switch is set to the ON position, the terminal is pulled high and battery charging is enabled on downstream port 3.
SW1_8
Off
PWRON4_BATEN4 Switch
The TUSB8044 has an internal pulldown on this terminal, so USB battery charging mode on Port 4 is disabled by default. If
the switch is set to the ON position, the terminal is pulled high and battery charging is enabled on downstream port 4.
SW2_1,
SW2_7
Off
AUTOENZ_PD/BB_bmConfig1_PD Switch
When configured for I2C mode, this pin along with BBbmConfigured0 directly controls the bmConfigurated field in the
Billboard Capability descriptor. If SMBus is selected, then bmConfigured[1] field is determined by a register. If SMBus is
selected, the sampled value of this pin will set or clear the autoEnz bit in the Battery Charging Support Register. SMBus
master can at a later time override the register. If SMBus is selected and stsOutputEn bit is set, this pin will function as a
HS_SUSPEND (upstream HS suspend indicator). When enabled, a value of 1 indicates the connection is suspended.
SW2_2
Off
GANGED_HS_UP/BB_CONNECT Switch
When configured for I2C mode, this pin functions as Billboard Enable. When high, the billboard device is enabled and
presented to system. When low, the billboard device is disabled. If SMBus is selected, then Billboard Enable is controlled by
a register.
If SMBus is selected and stsOutputEn bit is set, this pin will function as a HS_UP (upstream HS connection indicator). When
enabled, a value of 1 indicates the upstream port is connected to a HS USB-capable port.
If SMBus is selected, the value of the pin is sampled at the de-assertion of reset to set the power switch and overcurrent
detection mode as follows: 0 = Individual port power control supported. 1 = Ganged port power control supported. SMBus
master can at a later time override the register.
SW2_3
Off
PWRCTL_POL Switch
The TUSB8044 has an internal pullup on this terminal, so port power control polarity defaults to active high. If the switch is
set to the ON position, the terminal is pulled low and the port power control polarity changes to active low.
SW2_4
Off
FULLPWRMGMTZ_SS_UP/BB_bmConfig0 Switch
When configured for I2C mode, this pin along with BBbmConfigured1 directly controls the bmConfigurated field in the
Billboard Capability descriptor. If SMBus is selected, then bmConfigured[0] field is determined by a register.
If SMBus is selected and battery charging is enabled on any port, the sampled state of this pin will set or clear the
FullAutoEn bit in the Device Configuration Register 3. SMBus master can at a later time override the register.
If SMBus is selected and battery charging is disabled, then the value of the pin is sampled at the de-assertion of reset to set
the power switch control: SMBus master can override this function at a later time.
0 = Power Switching and over current inputs supported.
1= Power Switch and over current inputs not supported.
If SMBus is selected and stsOutputEn bit is set, ths pin will function as an SS_UP (upstream SS connection indicator).
When enabled, a value of '1' indicates the upstream port is connected to a SuperSpeed USB capable port.
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Hardware Setup
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Table 1. Switch Definitions (continued)
3.2
Switch
Standard
SW2_5
Off
SCL_SMBCLK PD Switch
The TUSB8044 has an internal pulldown on this terminal, so the serial EEPROM or SMBUS interface is disabled. If the
switch is set to the ON position, an external pulldown resistor is connected to the serial clock terminal for test purposes.
SW2_6
Off
SDA_SMBDAT PD Switch
The TUSB8044 has an internal pulldown on this terminal, so the serial EEPROM or SMBUS interface is disabled. If the
switch is set to the ON position, an external pulldown resistor is connected to the serial clock terminal for test purposes.
EVM Installation
To
1.
2.
3.
3.3
Definition
install the EVM, perform the following steps:
Attach a 5-V, 3-A wall power source to J6.
Turn on switch SW3, LED D4 should be lit.
Attach a USB cable between J3 and a USB host. LEDs D1, D5, D6, D7 and D8 should be lit.
Troubleshooting
Case 1: Device function or functions are “banged out” in Device Manager.
• Make sure that the latest updates are installed for the operating system.
• Make sure that the latest drivers are installed for the host controller.
Case 2: The EVM does not work at all.
• Verify that all switches are in their default state and the EVM is powered on with a 5-V source with
adequate current to support any bus-powered devices (3 A+).
• If installed, remove the serial EEPROM from the EEPROM socket. The EVM does not require an
EEPROM to operate.
• Make sure shunts are installed on J7, J8, and J9.
• In the case where a 12-V power supply has been attached to the EVM, the fault is non-recoverable.
6
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Appendix A
SLLU261A – April 2017 – Revised December 2018
TUSB8044RGC REVD EVM Bill of Materials
This appendix contains the TUSB8044RGC REVD EVM BOM.
Table 2. TUSB8044 QFN Lab EVM Bill Of Materials: Texas Instruments, CCI and ICP
Item
Qty
Reference
Part
Manufacturer
Part Number
Pkg
Description
1
1
C5
1uF
Murata
GRM219R61A105KA01D
805
1µF ±10% 10V Ceramic Capacitor X5R 0805
(2012 Metric)
2
1
C3
1uF
Samsung
CL05B105KQ5NQNC
402
CAP CER 1UF 6.3V 10% X7R 0402
3
5
C39,C47,C49,C57
,C59
0.001uF
TDK
C1005X7R1H102K
402
CAP CER 1000PF 50V X7R 10% 0402
4
9
C6,C9,C12,C15,C
19,C22,C25,C28,
C32,
0.001uF
TDK
C0603X7R1E102K030BA
201
CAP CER 1000PF 25V 10% X7R 0201
5
9
C7,C10,C13,C16,
C20,C23,C26,C29
,C33
0.01uF
Yageo
CC0201KRX7R7BB103
201
CAP CER 10000PF 16V 10% X7R 0201
6
18
C4,C38,C40,C41,
C46,C48,C50,C51
,C56,C58,C66,C6
9,C72,C75,C77,C
78,C80,C81
0.1uF
Yageo
CC0402KRX5R6BB104
402
CAP CERAMIC .1UF 10V X5R 0402
7
19
C8,C11,C14,C17,
C21,C24,C27,C30
,C34,C36,C37,C4
2,C43,C44,C45,C
52,C53,C54,C55
0.1uF
TDK
C0603X5R0J104M
201
CAP CER .10UF 6.3V X5R 0201
8
2
C1,C2
18pF
AVX
04025A180JAT2A
402
CAP CERM 18PF 5% 50V NP0 0402
9
9
C18,C31,C35,C61
,C67,C68,C73,C7
4,C82
10uF
Murata Electronics
GRM31CR61C106KA88L
1206
CAPACITOR CERM 10UF 16V 10% SMD
10
4
C70,C71,C76,C79
150uF
Kemet
T495D157K010ATE100
(Tantalum)
7343
CAP TANT 150UF 10V 10% LOESR SMD
11
0
R10,R32,R42,R43
,R44,R45
NOPOP
12
6
D1,D4,D5,D6,D7,
D8
LED Green 0805
Lite On
LTST-C171GKT
805
LED GREEN CLEAR THIN 0805 SMD
13
0
D2,D3
LED Green 0805 NOPOP
Lite On
LTST-C171GKT
805
LED GREEN CLEAR THIN 0805 SMD
14
5
FB1,FB3,FB4,FB5
,FB6
220 @ 100MHZ
Ferrite Bead
Murata
BLM18PG221SN1D
603
FERRITE CHIP 220 OHM 1400MA 0603
15
2
SW1,SW2
8-POS 50-MIL
SMT
C&K Components
SD08H0SBR
16
1
J1
USB3_TYPEB_C
ONNECTOR
Amphenol
GSB321131HR
9_RA_TH_B
CONN RCPT USB 3.0 TYPE B R/A 9PS
17
4
J2,J3,J4,J5
USB3_TYPEA_C
ONNECTOR
Amphenol
GSB311131HR
9_RA_TH_A
CONN RCPT USB 3.0 TYPE A R/A 9PS
18
1
J6
2.1mm x 5.5mm
DC Power Jack
CUI Inc.
PJ-202AH
2.1mm x
5.5mm
CONN PWR JACK 2.1X5.5MM HIGH CUR
19
6
R1,R15,R17,R18,
R19,R20
1M
Rohm
Semiconductor
MCR01MZPJ105
402
RES 1.0M OHM 1/16W 5% 0402 SMD
20
1
R2
90.9K 1%
Rohm
Semiconductor
MCR01MZPF9092
402
RES 90.9K OHM 1/16W 1% 0402 SMD
21
4
R26,R27,R29,R36
10K
Rohm
Semiconductor
MCR01MZPJ103
402
RES 10K OHM 1/16W 5% 0402 SMD
22
1
R3
10K 1%
Rohm
Semiconductor
MCR01MZPF1002
402
RES 10K OHM 1/16W 1% 0402 SMD
23
4
R6,R7,R8,R9
4.7K
Rohm
Semiconductor
MCR01MZPJ472
402
RES 4.7K OHM 1/16W 5% 0402 SMD
402
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SWITCH DIP SPST SEALED 8POS SMD
TUSB8044RGC REVD EVM Bill of Materials
Copyright © 2017–2018, Texas Instruments Incorporated
7
Appendix A
www.ti.com
Table 2. TUSB8044 QFN Lab EVM Bill Of Materials: Texas Instruments, CCI and ICP (continued)
Item
Qty
Reference
Part
Manufacturer
Part Number
Pkg
Description
24
15
R4,R5,R11,R12,R
13,R14,R22,R23,
R24,R25,R38,R39
,R46, R47, R48
1K
Rohm
Semiconductor
MCR01MZPJ102
402
RES 1.0K OHM 1/16W 5% 0402 SMD
25
8
R16,R28,R30,R31
,R35,R37,
330
Rohm
Semiconductor
MCR01MZPJ331
402
RES 330 OHM 1/16W 5% 0402 SMD
26
1
R33
1.87K
Vishay / Dale
CRCW04021K87FKED
402
RES 1.87K OHM 1/16W 1% 0402 SMD
27
1
R34
4.99K
Vishay / Dale
CRCW04024K99FKED
402
RES 4.99K OHM 1/16W 1% 0402 SMD
28
1
R21
9.53K 1%
Rohm
Semiconductor
MCR01MRTF9531
402
RES 9.53K OHM 1/16W 1% 0402 SMD
29
1
U1
TUSB8044 - USB
3.0 Hub
Texas Instruments
TUSB8044RGC
64QFN
30
1
U2
AT24C04 I2C
EEPROM
Assmann WSW
Components
A 08-LC-TR
8DIP
CONN IC DIP SOCKET 8POS TIN
31
4
U7,U8,U9,U10
TPS2001C
Texas Instruments
TPS2001CDGN
8DGN
IC PWR SW USB 2.87A 1CH 8MSOP
32
1
U4
TPS7A4533 - 3.3V
Voltage Regulator
Texas Instruments
TPS7A4533KTT
DDPAK-5
IC REG LDO 3.3V 1.5A 5-DDPAK
33
1
U6
TPS74801RGW 1.1V Voltage
Regulator
Texas Instruments
TPS74801RGW
20VQFN
IC REG LDO ADJ 1.5A 20VQFN
34
1
Y1
ECS-24MHZ
Crystal
ECS
ECS-240-20-30B-TR
5.0mm x
3.2mm
CRYSTAL 24.000 MHZ 20PF SMD
35
4
PCB Standoff
Keystone
Electronics
2203
HEX STANDOFF 4-40 ALUMINUM 1/2"
36
4
Screw
Keystone
Electronics
9900
MACHINE SCREW PAN PHILLIPS 4-40
37
1
FB2
0 ohm
Yageo
RC0603JR-070RL
603
38
0
JP6
Conn 2x5 shroud NO POP
3M
2510-6003UB
HDR5X2 M
0.1" TH
39
6
J7,J8,J9,J10,J11,J
12
Header 1x2
3M
961102-6404-AR
HDR2X1 M
0.1" TH
CONN HEADER VERT SGL 2POS GOLD
40
1
J13
Header 3PIN
3M
961102-6404-AR
HDR2X1 M
0.1" TH
CONN HEADER VERT SGL 2POS GOLD
41
1
SW3
Power Switch L101011MS02Q
C&K Components
L101011MS02Q
SPST
42
0
GND1, GND2
NOPOP
43
1
LB1
sticker
3M
695-WHITE-2"X36YD
add text: TUSB8044RGCEVM INT077-001 REV
A
44
6
Shunt
Shunt
3M
969102-0000-DA
Place shunts on: J7,J8,J9,J10,J11,J12
45
1
PCB BOARDS
TUSB8044RGCE
VM
INT077-001
TUSB8044RGCEVM PCBBOARD
R40,R41
8
TUSB8044RGC REVD EVM Bill of Materials
RES 0.0 OHM 1/10W 0603 SMD
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Appendix B
SLLU261A – April 2017 – Revised December 2018
TUSB8044RGC REVD EVM Schematics
Figure 2 through Figure 4 the TUSB8044RGC REVD EVM schematics.
BOARD_3P3V
R1
1M
USB_SSRXN_UP
USB_SSRXP_UP
USB_SSTXM_UP
USB_SSTXP_UP
USB_DM_UP
USB_DP_UP
Y1
VDD33
VDD11
R2
GRSTZ
ECS-24MHZ
C1
C2
18pF
18pF
R21
1
TEST_TRSTZ
C3
9.53K
R3
10K
0402
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
1uF
2
2
USB_DP_DN1
USB_DM_DN1
USB_SSTXP_DN1
USB_SSTXM_DN1
USB_SSRXP_DN1
USB_SSRXM_DN1
2
2
2
2
USB_DP_DN2
USB_DM_DN2
USB_SSTXP_DN2
USB_SSTXM_DN2
2
2
USB_SSRXP_DN2
USB_SSRXM_DN2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
USB_DP_DN1
USB_DM_DN1
USB_SSTXP_DN1
USB_SSTXM_DN1
VDD11
USB_SSRXP_DN1
USB_SSRXM_DN1
VDD11
USB_DP_DN2
USB_DM_DN2
USB_SSTXP_DN2
USB_SSTXM_DN2
VDD11
USB_SSRXP_DN2
USB_SSRXM_DN2
VDD33
2
2
2
2
2
2
PPAD
2
USB_VBUS_UP
2
R44
NOPOP
R43
NOPOP
R42
NOPOP
JP6
1
3
5
7
9
JTAG is for lab evaluation only on TUSB8044.
This header and NOPOP pullups are not recommended
for customers.
Header 1x2
90.9K
0402
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
R45
NOPOP
TEST_TRSTZ
PWRCTL_POL_TDO
OVERCUR1Z_TDI
OVERCUR2Z_TMS
OVERCUR3z_TCK
OVERCUR2Z_TMS
OVERCUR1Z_TDI
AUTOENZ/BB_bmConfig1
OVERCUR2Z_TMS
OVERCUR1Z_TDI
3
3
OVERCUR3Z_TCK
GANGED_HS_UP/BB_CONNECT
PWRCTL_POL_TDO
FULLPWRMGMTZ_SS_UP/BB_bmConfig0
SMBUSZ
SCL_SMBCLK
SDA_SMBDAT
3
PWRON1_BATEN1
PWRON2_BATEN2
PWRON3_BATEN3
PWRON4_BATEN4
2
4
6
8
10
Conn 2x5 shroud
3
3
3
3
65
BOARD_3P3V
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
TUSB8044
2
2
2
2
2
2
USB_VBUS
OVRCUR2Z_TMS
OVRCUR1Z_TDI
AUTOENZ_HS_SUSPEND
OVRCUR3Z_TCK
OVRCUR4Z
GANGED_SMBA2_HS_UP
PWRCTL_POL_TDO
FULLPWRMGMTZ_SMBA1_SS_UP
SMBUSZ_SS_SUSPEND
SCL_SMBCLK
SDA_SMBDAT
PWRON1Z_BATEN1
PWRON2Z_BATEN2
VDD33
PWRON3Z_BATEN3
USB_DP_DN3
USB_DM_DN3
USB_SSTXP_DN3
USB_SSTXM_DN3
VDD11
USB_SSRXP_DN3
USB_SSRXM_DN3
USB_DP_DN4
USB_DM_DN4
USB_SSTXP_DN4
USB_SSTXM_DN4
VDD11
USB_SSRXP_DN4
USB_SSRXM_DN4
VDD11
PWRON4Z_BATEN4
2
2
2
2
USB_R1
VDD33
XI
XO
NC
USB_SSRXM_UP
USB_SSRXP_UP
VDD11
USB_SSTXM_UP
USB_SSTXP_UP
USB_DM_UP
USB_DP_UP
VDD33
VDD11
GRSTN
TEST_TRSTz
U1
J8
2
2
2
2
2
2
USB_DP_DN3
USB_DM_DN3
USB_SSTXP_DN3
USB_SSTXM_DN3
USB_SSRXP_DN3
USB_SSRXM_DN3
USB_DP_DN4
USB_DM_DN4
USB_SSTXP_DN4
USB_SSTXM_DN4
USB_SSRXP_DN4
USB_SSRXM_DN4
R22
1K
0402
SW1
8-POS 50-MIL SMT
TEST_TRSTZ
SMBUSZ
SCL_SMBCLK
SDA_SMBDAT
PWRON1_BATEN1
PWRON2_BATEN2
PWRON3_BATEN3
PWRON4_BATEN4
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
R4
1K
0402
R5
1K
0402
R6
4.7K
0402
R7
4.7K
0402
R8
4.7K
0402
R9
4.7K
0402
TEST_PUP
SMBUSZ_PD
SCL_PUP
SDA_PUP
BATEN0
BATEN1
BATEN2
BATEN3
R24
1K
0402
BOARD_3P3V
Plac e shunts on: J7,J8,J9,J10,J11,J12
BOARD_3P3V
R23
1K
AUTOENZ/BB_bmConfig1
C4
0.1uF
Optional EEPROM Circuitry
R10
NOPOP
GANGED_HS_UP/BB_CONNECT
U2
R11
1K
0402
R12
1K
0402
R13
1K
0402
PWRCTL_POL_TDO
A0
A1
A2
GND
VCC
WP
SCLK
SDATA
8
7
6
5
2
FULLPWRMGMTZ_SS_UP/BB_bmConfig0
SCL_SMBCLK
1
1
2
3
4
5
6
7
8
GANGED_HS_UP/BB_CONNECT_2
Header 1x2
SDA_SMBDAT
SW2
8-POS 50-MIL SMT
AUTOENZ/BB_bmConfig1_2
Header 1x2
J11
1
2
FULLPWRMGMTZ_SS_UP/BB_bmConfig0_2
J12
2
D3
Header 1x2 LED-DNI
D2
LED-DNI
US HS
16
15
14
13
12
11
10
9
R14
1K
0402
J13
3
R48
1K
GANGED_PU/BB_CONNECT_PU
PWRCTL_POL_PD
FULLPWRMGMTZ_PUP/BB_bmConfig0_PU
SCL_PD
SDA_PD
AUTOENZ_PU/BB_bmConfig1_PU
US SS
AT24C04
2
1
R38
1K
AUTOENZ_PD/BB_bmConfig1_PD
R46
1K
R40
R41
330 - DNI
330 - DNI
VDD33
R47
1K
R39
1K
BOARD_3P3V
FB1
J7
1
C5
1uF
C6
C7
0.01uF
0.001uF
C8
C9
C10
0.1uF
0.001uF
0.01uF
C11
0.1uF
C12
C13
C14
C15
C16
C17
0.001uF
0.01uF
0.1uF
0.001uF
0.01uF
0.1uF
220 @ 100MHZ
VDD11
2
Header 1x2
BOARD_1P1V
FB2
J9
1
C19
C20
C21
C22
C23
C24
C25
C26
C27
C28
C29
C30
0.001uF
0.01uF
0.1uF
0.001uF
0.01uF
0.1uF
0.001uF
0.01uF
0.1uF
0.001uF
0.01uF
0.1uF
C31
10uF
C32
C33
C34
0.001uF
0.01uF
0.1uF
GND1
220 @ 100MHZ
Header 1x2
1
C18
10uF
2
GND2
1
1
2
3
4
R25
1K
J10
1
Copyright © 2017, Texas Instruments Incorporated
Figure 2. TUSB8044RGC REVD EVM Top Layer Layout
SLLU261A – April 2017 – Revised December 2018
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Copyright © 2017–2018, Texas Instruments Incorporated
9
Appendix B
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USB_VBUS_UP
1
J1
VBUS
DM
DP
GND
SSTXN
SSTXP
GND
SSRXN
SSRXP
SHIELD0
SHIELD1
1
2
3
4
5
6
7
8
9
10
11
CAP_UP_TXM
CAP_UP_TXP
C38
0.1uF
USB3_TYPEB_CONNECTOR
C36
0.1uF 0201
C37
0.1uF 0201
C39
0.001uF
USB_DM_UP
1
USB_DP_UP
1
USB_SSTXM_UP
1
USB_SSTXP_UP
USB_SSRXN_UP
USB_SSRXP_UP
1
1
1
C35
10uF
D1
LED Green 0805
R15
1M
0402
R16
330
0402
FB3
FB4
DN4_VBUS
C40
0.1uF
J2
VBUS
DM
DP
GND
SSRXN
SSRXP
GND
SSTXN
SSTXP
SHIELD0
SHIELD1
1
2
3
4
5
6
7
8
9
10
11
DN4_VBUS
DN2_VBUS
3
220 @ 100MHZ
J3
VBUS_DS4
USB_DM_DN4
USB_DP_DN4
CAP_DN_TXM4
CAP_DN_TXP4
C42
0.1uF 0201
C44
0.1uF 0201
VBUS
DM
DP
GND
SSRXN
SSRXP
GND
SSTXN
SSTXP
SHIELD0
SHIELD1
1
1
USB_SSRXM_DN4
USB_SSRXP_DN4
USB_SSTXM_DN4
1
1
1
USB_SSTXP_DN4
1
USB3_TYPEA_CONNECTOR
VBUS_DS2
1
2
3
4
5
6
7
8
9
10
11
USB_DM_DN2
USB_DP_DN2
CAP_DN_TXM2
CAP_DN_TXP2
C43
0.1uF 0201
C45
0.1uF 0201
C47
0.001uF
R17
1M
0402
C48
0.1uF
C49
0.001uF
1
1
USB_SSRXM_DN2
USB_SSRXP_DN2
USB_SSTXM_DN2
1
1
1
USB_SSTXP_DN2
1
R18
1M
0402
FB5
FB6
DN1_VBUS
C50
0.1uF
J4
VBUS
DM
DP
GND
SSRXN
SSRXP
GND
SSTXN
SSTXP
SHIELD0
SHIELD1
3
USB3_TYPEA_CONNECTOR
C46
0.1uF
1
2
3
4
5
6
7
8
9
10
11
DN2_VBUS
C41 220 @ 100MHZ
0.1uF
VBUS_DS1
DN1_VBUS
220 @ 100MHZ
C52
0.1uF 0201
C54
0.1uF 0201
C51
0.1uF
J5
USB_DM_DN1
USB_DP_DN1
CAP_DN_TXM1
CAP_DN_TXP1
DN3_VBUS
3
1
1
USB_SSRXM_DN1
USB_SSRXP_DN1
USB_SSTXM_DN1
1
1
1
USB_SSTXP_DN1
1
USB3_TYPEA_CONNECTOR
VBUS
DM
DP
GND
SSRXN
SSRXP
GND
SSTXN
SSTXP
SHIELD0
SHIELD1
1
2
3
4
5
6
7
8
9
10
11
VBUS_DS3
USB_DM_DN3
USB_DP_DN3
CAP_DN_TXM3
CAP_DN_TXP3
DN3_VBUS
3
220 @ 100MHZ
C53
0.1uF 0201
C55
0.1uF 0201
1
1
USB_SSRXM_DN3
USB_SSRXP_DN3
USB_SSTXM_DN3
1
1
1
USB_SSTXP_DN3
1
USB3_TYPEA_CONNECTOR
C56
0.1uF
C57
0.001uF
R19
1M
0402
C58
0.1uF
C59
0.001uF
R20
1M
0402
Copyright © 2017, Texas Instruments Incorporated
Figure 3. USB Port Connections
10
TUSB8044RGC REVD EVM Schematics
SLLU261A – April 2017 – Revised December 2018
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Copyright © 2017–2018, Texas Instruments Incorporated
Appendix B
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DOWNSTREAM PORT POWER SWITCHES
BOARD_3P3V
BOARD_5V
5V INPUT
BOARD_5V
SW3
R26
10K
0402
C66
0.1uF
SILKSCREEN: TIP +5v
J6
U7
2
3
1
S
T
C82
10uF
2.1mm x 5.5mm
1
PWRON1_BATEN1
1
2
3
4
PWRON1_BATEN1
GND
IN
IN
EN
OUT
OUT
OUT
FLT
PAD
8
7
6
5
DN1_VBUS
DN1_VBUS
2
OVERCUR1Z_TDI
1
9
C69
TPS2001C
C70
150uF
+
0.1uF
C61
10uF
D5
R30
330
0402
BOARD_3P3V
BOARD_5V
R27
10K
0402
C75
0.1uF
U8
BOARD_5V
3.3V REGULATOR
1
BOARD_3P3V
PWRON2_BATEN2
1
2
3
4
PWRON2_BATEN2
GND
IN
IN
EN
OUT
OUT
OUT
FLT
PAD
C71
150uF
+
TPS7A4533
SENSE
2
1
D6
4
5
C68
10uF
GND
SHDN/
GND
OUT
R31
330
0402
D4
LED Green 0805
BOARD_3P3V
BOARD_5V
6
C67
10uF
IN
DN2_VBUS
OVERCUR2Z_TMS
C72
0.1uF
3
1
DN2_VBUS
9
TPS2001C
U4
2
8
7
6
5
R28
330
0402
R29
10K
0402
C78
0.1uF
U9
1
PWRON3_BATEN3
1
2
3
4
PWRON3_BATEN3
GND
IN
IN
EN
OUT
OUT
OUT
FLT
PAD
8
7
6
5
DN3_VBUS
+
0.1uF
C76
150uF
R35
330
0402
1P1V_SS
BOARD_1P1V
R32
NOPOP
BOARD_3P3V
BOARD_5V
2
3
4
13
14
17
15
NC1
NC2
NC3
NC4
NC5
NC6
SS
GND
21
BIAS
TPS74801RGW
OUT1
OUT2
OUT3
OUT4
FB
GND
10
IN1
IN2
IN3
IN4
EN
12
C73
10uF
5
6
7
8
11
1
D7
1.1V REGULATOR
U6
2
OVERCUR3Z_TCK
C77
TPS2001C
BOARD_3P3V
DN3_VBUS
9
PG
9
R36
10K
0402
C81
1
18
19
20
16
0.1uF
R33
1.87K
0402
U10
1
2
3
4
1P1V_FB
C74
10uF
1
PWRON4_BATEN4
PWRON4_BATEN4
R34
4.99K
0402
GND
IN
IN
EN
OUT
OUT
OUT
FLT
PAD
TPS2001C
8
7
6
5
DN4_VBUS
DN4_VBUS
2
9
C80
0.1uF
+
C79
150uF
D8
R37
330
0402
Copyright © 2017, Texas Instruments Incorporated
Figure 4. Power
SLLU261A – April 2017 – Revised December 2018
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TUSB8044RGC REVD EVM Schematics
Copyright © 2017–2018, Texas Instruments Incorporated
11
Revision History
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Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (April 2017) to A Revision .......................................................................................................... Page
•
12
Updated the out-of-date LED descriptions, updated references that indicated J5 was power jack to J6, and changed 3A
wall adapter to 5A. ........................................................................................................................ 1
Revision History
SLLU261A – April 2017 – Revised December 2018
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Copyright © 2017–2018, Texas Instruments Incorporated
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