SMSC Microchip USB3803 User manual

SMSC USB3803 EVB USER MANUAL Revision 1.0 (12-07-12)
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USB3803 WLCSP-EVB Evaluation Board User Manual

USB3803 WLCSP-EVB Evaluation Board User Manual
SMSC USB3803 EVB 2 Revision 1.0 (12-07-12)
USER MANUAL
1 Introduction
This user manual is for the USB3803 Evaluation board. This board can be used to test and evaluate
the functionality of the USB3803 and is ideal for early system integration and software development.
The USB3803 EVB provides access to the USB upstream and downstream ports, as well as the I2C
communication pins.
SMSC has evaluation software that can be used with the USB3803 EVB connected to a Total Phase
Aardvark adaptor. This software allows the user to configure the USB3803 in different ways before
enumeration and access select status registers during enumeration. The software can be used to
prototype microprocessor software, evaluate the different configurations, and test how the desired
configuration fits into the entire system.
2 Operation
2.1 Contents of the Kit
The USB3803 EVB includes the basic equipment necessary to evaluate the USB3803. The items
included in the kit are:
1. USB3803 EVB
2. 5V DC Power Supply
3. USB A to Mini-B cable
4. Documentation and Software CD
The kit does not include any downstream USB devices, I2C master hardware, or other components
for board customization.
2.2 Initial Configuration
The USB3803 EVB default configuration configures it to operate as a stand alone hub. To begin, plug
the evaluation board into the 5V power supply. After the board is powered up, plug the upstream port
into a standard PC host. The USB3803 EVB will enumerate as a Generic USB Hub, with the VID and
PID equal to the default values found in the USB3803 Datasheet.
The default configuration of the USB3803 is to enumerate as a Bus Powered Hub. This means that,
according to the USB 2.0 specification, the downstream ports are only allowed to provide 100mA of
current to the downsteam device. Although the evaluation board is designed to provide much more
current to the downstream ports, the PC host may generate an error. To avoid this condition, only
connect self powered USB 2.0 devices to the downstream ports when using the USB3803 EVB in it’s
default state. The USB3803 can also be configured as a Self Powered Hub through the I2C Serial
Interface Registers. This will eliminate the 100mA limit error reported by the host PC. Refer to the
datasheet for more details.
Refer to the next chapters to see the customization options associated with the evaluation kit.

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3 Hardware
The USB3803 EVB is a board that shows the capabilities of the USB3803. The board consists of the
USB upstream and downstream ports, a INT_N LED for visual confirmation of the interrupts configured,
a header exposing the I2C pins, and additional circuitry that is used for I2C communication.
3.1 USB Ports
The USB ports are mounted on the edges of the USB3803 EVB. The downstream ports use the
standard USB Type A receptacle. The label for the port is located near the receptacle. The USB
upstream port is a standard mini-B receptacle.
Figure 3.1 Block Diagram of the USB3803 EVB
Figure 3.2 Upstream and Downstream Ports
USB3803
Upstream
USB
Downstream
USB
Downstream
USB
Downstream
USB
Digital IO
LED
Upstream
Downstream1 Downstream2 Downstream3

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USER MANUAL
3.2 Test Points, Switches and LEDs
There are multiple test points to confirm that the USB3803 EVB is powered properly. TP1 and TP6
connect to GND; TP2 connects to the VBAT pin, and TP3 connects to the VDD_CORE_REG pin.
The USB3803 EVB also has three switches to manually control the RESET_N, BYPASS_N and
HUB_CONNECT inputs to the part. Figure 3.3 shows the location of the test points (Red) and switches
(Yellow).
The USB3803 SCL, SDA, RESET_N, BYPASS_N, HUB_CONNECT and INT_B pins are also exposed
on the J1 header. These pins are compatible with the Total Phase Aardvark pinout, where pin 1 of the
Aardvark connector connects to pin 1 of header J1 (Refer to Figure 4.1 for the proper way to connect
the Aardvark). The INT_N pin is also connected to LED1 to indicate that an interrupt has occurred.
The LED remains lit until the interrupt is cleared, as described in the USB3803 datasheet
3.3 Configuration Resistors
There are eight different resistors used to configure the part when the RESET_N pin transitions from
Low (0V) to High(>1.25V). These resistors are used for the REF_SEL and I2C_ASEL pins. Because
these resistors and pads connect to the 1.8V regulator, any changes to these resistors will need to be
done with the board unpowered. The resistor pads are laid out in a manner that prevents the pull-up
resistors from being populated at the same time as the pull-down resistors, as shown in Figure 3.4.
The following tables show the proper configuration resistor population requirements for the desired
results, the resistor values should match those found in Section 6, "USB3803 EVB Bill of Materials".
Figure 3.3 Test points, Switches, Header and LED
TP2
TP3
J1
Pin1
LED1
BYPASS
HUB_CONNECT
RESET
TP1
TP6

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USER MANUAL
Note: The Y1 Oscillator will need to be replaced with the proper frequency if the REF_SEL pins are
altered. Refer to Section 6, "USB3803 EVB Bill of Materials" for recommended oscillator
specifications.
3.4 Additional Circuitry
The U1 Regulator provides 3.3V to the VBAT pin, and also supplies power to the 26MHz clock
oscillator. If a higher VBAT voltage is desired, remove R1 and supply the power through TP2.
Table 3.1 REF_SEL Options
R18 R21 R27 R30 REFCLK(MHZ)
EMPTY EMPTY INSTALL INSTALL 38.4
EMPTY INSTALL INSTALL EMPTY 26.0 (Default)
INSTALL EMPTY EMPTY INSTALL 19.2
INSTALL INSTALL EMPTY EMPTY 12.0
Table 3.2 I2C Address Selection Options
R19 R20 R28 R29 I2C ADDRESS
EMPTY EMPTY INSTALL INSTALL 08h (Default)
INSTALL EMPTY EMPTY INSTALL 09h
EMPTY INSTALL INSTALL EMPTY 28h
INSTALL INSTALL EMPTY EMPTY 29h
Figure 3.4 Configuration Resistors

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USER MANUAL
The U2 Regulator provides 1.8V to the VDD_CORE_REG pin as well as providing the pull up voltage
for the digital control pins. To provide external power to the VDD_CORE_REG pin remove R8 and
supply the power through TP3.
The USB3803 can function with a single power supply; to do this remove R8 and place a 0Ohm
resistor on R9. This connects the VDD_CORE_REG pin to the VDD33_BYP pin allowing the
USB3803’s internal 3.3V regulator to supply the VDD_CORE_REG voltage.
Below is a summary of the different power options and what resistors need to be populated to support
these options:
The USB3803 EVB also has an option to supply the 5V reference from two different voltage sources.
The 5V can come from the upstream USB VBUS or from an external 5V supply. To supply the 5V
voltage from the upstream USB port, remove R5 and populate R35 with a 0Ohm resistor. The default
is to supply the 5V from an external source.
Table 3.3 VBAT and VDD_CORE_REG source control
R1 R8 R9 VBAT SOURCE
VDD_CORE_REG
SOURCE
INSTALL INSTALL EMPTY Onboard Regulator Onboard Regulator
EMPTY INSTALL EMPTY External (TP2) Onboard Regulator
EMPTY EMPTY EMPTY External (TP2) External (TP3)
INSTALL EMPTY INSTALL Onboard Regulator VDD33_BYP
EMPTY EMPTY INSTALL External (TP2) VDD33_BYP
Table 3.4 5V Reference Source
R5 R35 5V SOURCE
INSTALL EMPTY External 5V Supply
EMPTY INSTALL Upstream VBUS

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USER MANUAL
Below are the locations of the resistors on the back side of the board:
Figure 3.5 Regulator resistors
R1
R8
R5
R9
R35

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4 Software
The USB3803 EVB comes with a CD that contains evaluation software that can be used with the Total
Phase Aardvark USB-I2C adaptor (not included with the Evaluation Kit). To install the software, run
Setup.exe, found on the CD. This will install the USB3803 Evaluation Software, the LabVIEW Run-
time engine (to run the executable), and the Total Phase drivers to communicate with the Aardvark.
Once the software has been installed, locate and run the USB3803 Evaluation.exe program on the
computer. Connect the Aardvark to the USB3803 EVB with the red wire facing the power port, as in
Figure 4.1.
The software allows the user to control the digital input pins RESET_N, CONNECT, and BYPASS_N.
It also can monitor the INT_N pin for interrupts. There is a section to communicate with the I2C serial
port, as well as some quick configuration and customization options.
Figure 4.1 Aardvark Connection
Figure 4.2 USB3803 Evaluation Screen

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4.1 Digital Control
The RESET_N, HUB_CONNECT and BYPASS_N pins can be controlled in real time with the Digital
Control array. Each button in the array corresponds to the pin with the matching name. When the
button is orange, the pin is at logic level High. When the button is black the voltage is a logic level
Low. Refer to the green box in Figure 4.3 for the digital control array location.
Set the RESET_N pin low to reset the part and place it into the lowest power state. If the CONNECT
pin is low when the RESET pin transitions from low to high, the USB3803 will remain in a state that
allows the serial interface registers to be manipulated. To enumerate the hub, either write 00h to
register E7h, or drive the CONNECT pin high. Once the USB3803 has enumerated, the serial interface
registers should not be modified.
To test the bypass switch functionality, and run the USB3803 in another low power state, set the
BYPASS_N pin low. For more information refer to the datasheet for a complete description of each
pin’s functionality.
Notes: To prevent the Aardvark from driving against another voltage, the Aardvark is operates in
Open/Drain mode, therefore it is important that all switches on the board are set to the high
position, pulling the pins high.
4.2 I2C Communication
This application also contains a general I2C register read/write section. The Bit and Description
display the serial interface register descriptions found in the USB3803 datasheet. The Register display
can be used to select the proper serial interface register to manipulate. Click on the Value or Bit box
above to change the value of the register. Once the desired value and register are selected, press the
Write button to change the value on the part. Click on the Read button and the Value and Bit boxes
Figure 4.3 Digital Control (Green) and I2C (Yellow) sections

USB3803 WLCSP-EVB Evaluation Board User Manual
SMSC USB3803 EVB 10 Revision 1.0 (12-07-12)
USER MANUAL
will update the current value on the part. Refer to the USB3803 datasheet for a detailed description of
each register and operation of the device
4.3 Quick Configuration and Customization
The USB3803 Evaluation program also contains some quick configuration and customization options
that automatically update the registers to match the desired configuration. The USB3803 can
enumerate as a Self Powered or Bus Powered Hub with 1, 2 or 3 downstream ports. The VID, PID,
DID and enumeration strings can also be customized to allow the USB3803 to enumerate with
whatever identification is desired.
To change these values; update the configuration section to the desired options, then press the
Configure button. The part will then reset, pull the CONNECT pin low and update the registers as
specified. To enumerate with these options either raise the CONNECT pin, or press the Connect
button.
Figure 4.4 Quick Configuration Options

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USER MANUAL
5 USB3803 EVB Schematic
Figure 5.1 USB3803 EVB Schematic
5 5
4 4
3 3
2 2
1 1
D D C C B B A A
USB3803 25-pin WLCSP Evaluation Board
DNP
DNPDNPDNP
USB Connectors
3.3V VBAT (200mA)
1.8V VCC_CORE (200mA)
DNP
Digital Control
DNP
DNP
DNP
DNP
DNP DNP
DNP
DNP
I2C_ASEL1 I2C_ASEL0
DN1_DP
VDD_CORE
VDD33_BYP
DN2_DP DN1_DM DN2_DM
VBUS
DN3_DP DN3_DM
VBAT
VDD33_BYP
VDD_CORE
VBUS
I2C_ASEL0
I2C_ASEL1 I2C_ASEL0
UP_DM
UP_DP
VDD_PU
5V
VBAT
5V VBAT
VBAT
VDD_PU
OSC
OSC VDD_PU
Title Size Document Number Rev Date: Sheet of
3930 East Ray Road Suite 200 Phoenix, Arizona 85044 480-759-0200
SCH-7238AZ-A02 A PCB7238: USB3803 Evaluation Board
B
11Thursday, July 28, 2011
Title Size Document Number Rev Date: Sheet of
3930 East Ray Road Suite 200 Phoenix, Arizona 85044 480-759-0200
SCH-7238AZ-A02 A PCB7238: USB3803 Evaluation Board
B
11Thursday, July 28, 2011
Title Size Document Number Rev Date: Sheet of
3930 East Ray Road Suite 200 Phoenix, Arizona 85044 480-759-0200
SCH-7238AZ-A02 A PCB7238: USB3803 Evaluation Board
B
11Thursday, July 28, 2011
R25 ZERO R25 ZERO
SW3SW3
1
2
3
P5
USB MICRO-AB
P5
USB MICRO-AB
VBUS
1
D-
2
D+
3
ID
4
GND
5
SHLD1
6
SHLD2
7
SHLD3
8
SHLD4
9
SHLD5
10
SHLD6
11
R/ANGLE USB A CON
P1
USB-A
R/ANGLE USB A CON
P1
USB-A
VCC
1
D-
2
D+
3
SHLD1
5
GND
4
SHLD2
6
TP3
Orange
TP3
Orange
R3 30.1k R3 30.1k
R1 ZERO R1 ZERO
R16 10k R16 10k
R21 10k R21 10k
+
C13 120uF 6.3V
+
C13 120uF 6.3V
TP5TP5
C4 0.01uF C4 0.01uF
R14 10k R14 10k
R/ANGLE USB A CON
P3
USB-A
R/ANGLE USB A CON
P3
USB-A
VCC
1
D-
2
D+
3
SHLD1
5
GND
4
SHLD2
6
U2
TPS79301
U2
TPS79301
IN
1
GND
2
ENA
3BYP 4
OUT 6
FB 5
R17 1k R17 1k
R35 ZERO R35 ZERO
C19 1.0uF C19 1.0uF
MOM-ON
SW1
MOM-ON
SW1
3
1 2
4
TP1
Black
TP1
Black
LED2 GREEN LED2 GREEN
12
L1 F-BEAD L1 F-BEAD
R23 10k R23 10k
C3 0.1uF C3 0.1uF
+
C9 120uF 6.3V
+
C9 120uF 6.3V
C14 0.1uF C14 0.1uF
R33 ZERO R33 ZERO
U3
USB3803_25WLCSP
U3
USB3803_25WLCSP
I2C_ASEL1
B4
INT_N
C5
I2C_ASEL0
C4
SDA
D5
REF_SEL1
D4
SCL
E5
REF_SEL0
E4
RESET_N
E3
VDD12_BYP D3
USBUP_DP E2
VSS C3
REFCLK
B3
USBDN2_DM D2 USBDN3_DM D1
USBDN2_DP C2
USBUP_DM E1
USBDN3_DP C1 USBDN1_DP A1
USBDN1_DM B1
VDD33_BYP A2
BYPASS_N
A5
VBAT B2
VDD_CORE_REG A3
RBIAS A4
HUB_CONNECT
B5
C7 18pF C7 18pF
MTH4MTH4
MH 1
U4 MIC2026-1B U4 MIC2026-1B
IN
7
ENA
1OUTA 8
OUTB 5
FLAGA 2
ENB
4
GND
6
FLAGB 3
J6
Power_Jack
J6
Power_Jack
1 3 2
R36 12.0k R36 12.0k
R8 ZERO R8 ZERO
R18 10k R18 10k
P4USB mini AB SMD P4USB mini AB SMD
VBUS
1
D+
3D- 2
ID
4
GND
5
SHIELD1
6
SHIELD2
7
SHIELD3
8
SHIELD4
9
C10 0.01uF C10 0.01uF
R38 1k R38 1k
C5 4.7uF C5 4.7uF
R5 ZERO R5 ZERO
R6 14.3k R6 14.3k
R31 ZERO R31 ZERO
C12 4.7µF C12 4.7µF
C18 0.1uF C18 0.1uF
R11 10k R11 10k
R39 ZERO R39 ZERO
R2 51.0k R2 51.0k
MTH1MTH1
MH 1
R22 1k R22 1k
R32 ZERO R32 ZERO
J4J4
1 2
J3J3
1 3 2
R12 ZERO R12 ZERO
C17 0.1uF C17 0.1uF
R37 330 R37 330
TP4TP4
R13 10k R13 10k
R20 10k R20 10k
R15 10k R15 10k
R4 10k R4 10k
C8 0.1uF C8 0.1uF
C6 0.1uF C6 0.1uF
R28 10k R28 10k
TP2
Orange
TP2
Orange
SW2SW2
1
2
3
C1 4.7uF C1 4.7uF
R27 10k R27 10k
R29 10k R29 10k
R30 10k R30 10k
R/ANGLE USB A CON
P2
USB-A
R/ANGLE USB A CON
P2
USB-A
VCC
1
D-
2
D+
3
SHLD1
5
GND
4
SHLD2
6
R34 10k R34 10k
MTH3MTH3
MH 1
R7 30.1k R7 30.1k
+
C15 120uF 6.3V
+
C15 120uF 6.3V
R9 ZERO R9 ZERO
Y1 26.0 MHz 3.3V Y1 26.0 MHz 3.3V
VCC 4
OUT 3
EN
1
GND
2
R24 10k R24 10k
U1
TPS79301
U1
TPS79301
IN
1
GND
2
ENA
3BYP 4
OUT 6
FB 5
R10 10k R10 10k
R19 10k R19 10k
MTH2MTH2
MH 1
U5
SCHMITT TRIG
U5
SCHMITT TRIG
24
53
1
TP6
Black
TP6
Black
C11 0.1uF C11 0.1uF
C16 4.7uF C16 4.7uF
R26 10k R26 10k
R40 ZERO R40 ZERO
C2 18pF C2 18pF
J1J1
1 34
2
56 78 910
LED1 Green LED1 Green
12
J2J2
1 3 2
J5J5
1 2

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USER MANUAL
6 USB3803 EVB Bill of Materials
Figure 6.1 USB3803 EVB Bill of Materials
Part ID Quantity Part Reference Description Digikey_Number Manuf Manuf_PN RoHS DNP
12
C1 C5 CAP CER 4.7UF 4V X5R 0402 587-1966-1-ND Taiyo Yuden AMK105BJ475MV-F Yes
22
C2 C7 CAPACITOR CERAMIC 18PF 50V 0402 SMD PCC180CQCT-ND PANASONIC ECJ-0EC1H180J Yes
37
C3 C6 C8 C14 C17 CAPACITOR CERAMIC 0.1UF 10V X5R 0402 PCC2146CT-ND PANASONIC ECJ-0EB1A104K Yes
42
C4 C10 CAPACITOR CERAMIC 0.01UF 16V 10% X7R 0402 PCC103BQCT-ND PANASONIC ECJ-0EB1C103K Yes
53
C9 C13 C15 CAP 120UF 6.3V ELECT POLY SMD 565-3188-1-ND United Chemi-Con APXE6R3ARA121ME61G Yes
62
C11 C18 CAP CER .1UF 6.3V X5R 0201 490-3167-1-ND MURATA ERIE GRM033R60J104KE19D Yes
71
C12 CAP CER 4.7UF 6.3V X5R 0402 490-5408-1-ND MURATA ERIE GRM155R60J475ME87D Yes
81
C16 CAPACITOR CERAMIC 4.7UF 6.3V X5R 20% 0603 445-1417-1-ND TDK C1608X5R0J475M Yes
91
C19 CAPACITOR CERAMIC 1.0UF 6.3V 20% X5R 0402 490-1319-1-ND MURATA ERIE GRM155R60J105ME19D Yes
10 1 J1 HEADER, 2 X 5, 0.1 INCH, VERTICAL SAM1030-05-ND SAMTEC TSW-105-07-L-D Yes 11 J2 CONN RECPT ULTRA-MINI COAX AMD H9161CT-ND HIROSE U.FL-R-SMT (10) Yes J2 12 J3 CONN RECPT ULTRA-MINI COAX AMD H9161CT-ND HIROSE U.FL-R-SMT (10) Yes J3 13 2 J4 J5 HEADER, 1 X 2, 0.1 INCH, VERTICAL WM6402-ND MOLEX 22-28-4020 Yes 14 1 J6 CONNECTOR POWER JACK 2.1X5.5MM HIGH CURR CP-002AH-ND CUI STACK PJ-002AH Yes 15 1 L1 FERRITE BEAD, 120 OHM, 0.5A, 0.1DCR, 0603 P10750CT-ND PANASONIC EXC-3BP121H Yes 16 1 LED1 LED GREEN SMT 404-1005-1-ND STANLEY BG1111C-TR Yes 17 1 LED2 LED GREEN 2X1.2MM 568NM GN WTR CLR SMD 754-1131-1-ND Kingbright APT2012SGC Yes 18 4 MTH1 MTH2 MTH3 MTH4 MOUNTING PAD MTG250C140D 19 3 P1 P2 P3 RECEPTACLE, USB, STYLE B, RIGHT ANGLE 609-1045-ND FCI 87520-0010BLF Yes 20 1 P4 CONNECTOR RECEPT USB MINI AB 5POS RT ANG WM17122CT-ND MOLEX 56579-0576 Yes 21 0 P5 CONNECTOR RECEPT MICRO USB TYPE AB SMT A97799CT-ND TYCO ELECTRONICS 1981584-1 Yes P5 22 2 R1 R5 R8 R35 RESISTOR ZERO OHM 1/4W 5% 1206 311-0.0ERCT-ND YAGEO RC1206JR-070RL Yes R1 R5 R35
23 1 R2 RES 51.0K OHM 1/10W 1% 0402 SMD P51.0KLCT-ND Panasonic - ECG ERJ-2RKF5102X Yes
24 2 R3 R7 RES 30.1K OHM 1/10W 1% 0402 SMD P30.1KLCT-ND Panasonic - ECG ERJ-2RKF3012X Yes 25
15 R4 R10 R11 R13 R14 R15 R16
R18 R19 R20 R21 R23 R24 R26 R27 R28 R29 R30 R34
RESISTOR 10K OHM 1/16W 5% 0402 SMD P10KJCT-ND PANASONIC ERJ-2GEJ103X Yes R18 R19 R20 R23
R30
26 1 R6 RES 14.3K OHM 1/10W 1% 0402 SMD P14.3KLCT-ND Panasonic - ECG ERJ-2RKF1432X Yes 27 4
R9 R12 R25 R31 R32 R33 R39
R40 RESISTOR ZERO OHM 1/16W 5% 0402 SMD 311-0.0JRCT-ND YAGEO RC0402JR-070RL Yes R9 R33 R31 R32
28 3 R17 R22 R38 RESISTOR 1.0K OHM 1/16W 5% 0402 SMD P1.0KJCT-ND PANASONIC ERJ-2GEJ102X Yes 29 1 R36 RESISTOR 12.0K OHM 1/20W 1% 0201 SMD P12.0KABCT-ND PANASONIC ERJ-1GEF1202C Yes 30 1 R37 RESISTOR 330 OHM 1/16W 1% 0402 SMD 311-330LRCT-ND YAGEO RC0402FR-07330RL Yes 31 1 SW1 SWITCH TACTILE 6MM EXTEND ACT 160GF EG1861-ND E-SWITCH TL1105SPF160Q Yes 32 2 SW2 SW3 SWITCH SLIDE SPDT SMD GULL 563-1022-1-ND COPAL ELECTRONICS CJS-1200TB Yes 33 2 TP1 TP6 TEST POINT LOOP COMPACT BLACK 5006K-ND KEYSTONE 5006 Yes 34 2 TP2 TP3 TEST POINT LOOP COMPACT ORANGE 5008K-ND KEYSTONE 5008 Yes 35 2 TP4 TP5 TEST POINT 5015KCT-ND KEYSTONE 5015 Yes 36 2 U1 U2 IC 200MA LDO LINEAR REG SOT23-6 296-15305-1-ND TEXAS INSTRUMENTS TPS79301DBVRQ1 Yes 37 1 U3 USB3803_25VFBGA SMSC USB3803 Yes 38 1 U4 POWER SWITCH USB MIC2026-1B 576-2137-ND MICREL MIC2026-1YM Yes 39 1 U5 IC SCHMITT-TRG INV GATE SOT23-5 296-1092-1-ND TEXAS INSTRUMENTS SN74AHC1G14DBVR Yes U5 40 1 Y1 OSCILLATOR PROG 3.3V +-50PPM SMD AP3S3EC-ND ABRACON AP3S-26.0MHz Yes

USB3803 WLCSP-EVB Evaluation Board User Manual
SMSC USB3803 EVB 13 Revision 1.0 (12-07-12)
USER MANUAL
7 Revision History
Table 7.1 Customer Revision History
REVISION LEVEL & DATE SECTION/FIGURE/ENTRY CORRECTION
Rev 1.0
(12-07-12)
Initial Release