ST STUSB03E User manual

September 2006 Rev 1 1/11
UM0284
User manual
Getting started with the
STUSB03E USB full-speed transceiver demo board
Introduction
The STUSB03E USB full-speed transceiver is fully compliant with the Universal Serial Bus
Specification Revision 2.0. It provides a complete physical layer solution for any USB full
speed device. The STUSB03E connected with an USB controller is ideal for use in mobile
phones, digital cameras, printers, PDAs, etc.
The STUSB03E USB full-speed transceiver demo board is designed for demonstration and
evaluation purposes.
Assembled STUSB03E USB full-speed transceiver demo board PCB
www.st.com

Contents UM0284
2/11
Contents
1 Hardware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Jumper assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Connector assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4 Test points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Appendix A STUSB03E demo board schematic diagram . . . . . . . . . . . . . . . . . . . 7
Appendix B STUSB03E demo board components layout . . . . . . . . . . . . . . . . . . . 8
Appendix C STUSB03E demo board bill of materials . . . . . . . . . . . . . . . . . . . . . . 9
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

UM0284 Hardware description
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1 Hardware description
The demo board contains the STUSB03E USB Low/Full Speed transceiver, one power
supply connector, one Mini-B USB connector, a connector for interfacing with the controller
and all required discrete components (pull-up resistors, serial resistors and power supply
capacitors). The device can also be configured using a set of jumpers and the main signals
can be accessed through test points (see Section 1.4).
Figure 1. STUSB03E demo board block diagram
The 'USB controller header connector' makes it possible to connect a USB controller or any
digital control system. For more information concerning the connection of the USB
controller, refer to Table 4: CN2 pin assignments.
The jumpers also enable testing and measurement of the STUSB03E without a USB
controller.
1.1 Power requirements
The following supply voltages for the STUSB03E USB FS transceiver are recommended:
VIF = 1.6 - 3.6 (typical VIF value is 1.8V)
VBUS = 4.0 - 5.5V (typical VBUS value is 5V)
The demo board is designed for the same voltage ranges. The board does not contain a
voltage regulator.
Jumper J3 is used to choose whether to supply the VBUS pin from the USB connector or
from CN1.
When the VBUS voltage is above VBUSDET threshold, LED D1 switches ON. Connect Jumper
J9 to enable this function.
STUSB03E
USB FS
Transceiver
Power pins (VBUS, VIF)
USB
Controller
Header
Connector
Mini-B
connector
Jumpers
SPD, CON, SUS,
OE#, VBUS, RSEL
RPULL-UP
V
BUS
,
DP
,
DM

Hardware description UM0284
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1.2 Jumper assignments
Table 1 describes the jumper assignments of the demo board.
1.3 Connector assignments
Table 1. Demo board jumper assignments
Jumper Related
pin(s) Description
J1 D+
Connected: Connects a 1.5kΩ pull-up resistor to the D+ data line. Must be
connected in Full-Speed mode when RSEL = 0
Leave Open when in Low-speed mode.
J2 D-
Connected: Connects a 1.5kΩ pull-up resistor to the D- data line. Must be
connected in Low-speed mode.
Leave Open when in Full-speed mode.
J3 VBUS
1-2 Connected: Selects CN1 connector as 5V VBUS voltage source.
2-3 Connected: 5V VBUS voltage is supplied by CN3 USB connector
J4 SPD 1-2 Connected: STUSB03E transceiver in Low-speed mode(1)
2-3 Connected: STUSB03E transceiver in Full-speed mode
1. Leave this jumper open when controlling this function using an external USB controller connected to CN2.
J5
CON,
RSEL,
SPD, VPU
1-2 Connected: VPU pin in high impedance; data line pull-up resistor
disconnected(1)
2-3 Connected: VPU pin outputs 3.3V ±10% (data line pull-up resistor
connected to internal LDO regulator output) when SPD = 1 and RSEL = 0 or
when SPD = 0
J6 SUS 1-2 Connected: STUSB03E transceiver active(1)
2-3 Connected: STUSB03E transceiver in Suspend mode
J7 OE# 1-2 Connected: STUSB03E transceiver in Transmit mode(1)
2-3 Connected: STUSB03E transceiver in Receive mode
J8 RSEL 1-2 Connected: Internal FS pull-up resistor disabled
2-3 Connected: Internal FS pull-up resistor enabled
J9 VBUSDET
Connected: Enables the VBUS voltage detection LED. LED switches ON
when voltage greater than the VBUSDET threshold is detected.
Table 2. Demo board connectors
Connector Descriptions
CN1 Power supply: VBUS, VIF and GND. Refer toTa bl e 3 for pin assignments.
CN2 Header connector for USB controller connection. Refer to Ta ble 4 for USB
controller connections.
CN3 USB mini-B connector.

UM0284 Hardware description
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1.4 Test points
Table 3. CN1 pin assignments
Pin No. Description
1 VBUS – connect a 5V supply voltage when powering VBUS pin from CN1
2 VIF – Interface supply voltage (1.6V to 3.6V)
3Ground
4
Table 4. CN2 pin assignments
Pin No. Description Pin No. Description
1V
BUSDET 6VM
2 SPD 7 RCV
3GND8 CON
4VP9 OE#
5GND10 SUS
Table 5. Test points
T.P. No. Description
1 D+ Data line
2 D- Data line
3 VM Signal
4 VP Signal
5 RCV Signal
6V
BUSDET Signal

References UM0284
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2 References
[1] STUSB03E Datasheet, rev. 0
[2] Universal Serial Bus Specification, rev. 2.0
[3] USB Engineering Change Notice to USB Specification Revision 2.0

UM0284 STUSB03E demo board schematic diagram
7/11
Appendix A STUSB03E demo board schematic diagram
Figure 2. Schematic diagram
R6 15k R4 1.5k
R1
20
R2
20
R3 1.5k
C1 4.7µ
C2 1µ
C3 C4
1 2 3
1 2 3 4
CN1
1
P1
1
P2
1
P3
1
P4
1
P5
1
P6
VBUS
1
D-
2
D+
3
ID
4
GND
5
SHD 6
SHD 7
SHD
8
SHD
9
C
U
1 2
J1
1 2
J2
D+U1 D-U1
OE#
VTRM
D+ D-
VBUS
VPU
VIF
VBD SPD RCV VP VM
CON SUS
VBUS_CN1
VBUS_CN3
J1-1
J2-1
1 2 3 4 5 6 7 8 910
CN2 HEADER 5 X2
D1 LED
R11 560
R12 47
Q1-B
Q1-CQ1-E
12
J9
Q1 MMB T3 90 4
1 2 3
J4
1 2 3
J5
1 2 3
J6
1 2 3
J7
VIF
1 2 3
J8
SPD
1
RCV
2
VP
3
VM
4
CON
5
GND
6
SUS
7
RSEL
8
OE# 9
D- 10
D+ 11
VTRM 12
VPU 13
VBUS 14
VIF 15
VBD 16
U1 STUSB03E
RSEL
R5 15k
Not assembled

STUSB03E demo board components layout UM0284
8/11
Appendix B STUSB03E demo board components layout
Figure 3. Demo board components layout
Resistors R5 and R6 and capacitors C3 and C4 can be added in order to simulate typical
load conditions (Host/Hub side pull-down resistors and capacitive load).

UM0284 STUSB03E demo board bill of materials
9/11
Appendix C STUSB03E demo board bill of materials
Table 6. Bill of materials
Part type Quantity Designator Footprint
STUSB03E 1 U1 QFN16(3x3)
4,7µF 1 C1 1210
1µF 1 C2 1210
20Ω±1% 2 R1, R2 3518
1,5kΩ±1% 2 R3, R4 3518
560Ω1 R11 3518
47Ω1 R12 3518
Jumper 2 J1, J2 Through Hole
Jumper 6 J3-J8 Through Hole
Header 1 2 P1-P2 Through Hole
KP-2012SRC-PRV 1 D1 0805
MMBT3904 1 Q1 SOT-23
Header 4 1 CN1 Through Hole
Header 5x2 1 CN2 Through Hole
MINI-B USB Receptacle 1 CN3 USB mini B, SMT

Revision history UM0284
10/11
Revision history
Table 7. Document revision history
Date Revision Changes
18-Sept-2006 1 Initial release.

UM0284
11/11
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