USB3311
Hi-Speed USB Transceiver
with 1.8V ULPI Interface 26MHz Reference Clock
PRODUCT FEATURES
Data Brief
USB-IF “Hi-Speed” compliant to the Universal Serial
Bus Specification Rev 2.0
Interface compliant with the ULPI Specification
revision 1.1 as a Single Data Rate (SDR) PHY
1.8V IO Voltage (+/- 10%)
SMSC flexPWRTM Technology
— Low current design ideal for battery powered
applications
— “Sleep” mode tri-states all ULPI pins and places the
part in a low current state
Supports FS pre-amble for FS hubs with a LS device
attached (UTMI+ Level 3)
Supports HS SOF and LS keep-alive pulse
Includes full support for the optional On-The-Go
(OTG) protocol detailed in the On-The-Go
Supplement Revision 1.0a specification
Supports the OTG Host Negotiation Protocol (HNP)
and Session Request Protocol (SRP)
Allows host to turn VBUS off to conserve battery
power in OTG applications
Support OTG monitoring of VBUS levels with internal
comparators
“Wrapper-less” design for optimal timing performance
and design ease
— Low Latency Hi-Speed Receiver (43 Hi-Speed clocks
Max) allows use of legacy UTMI Links with a ULPI
bridge
Internal 5V cable short-circuit protection of ID, DP
and DM lines to VBUS or ground
26MHz Reference Clock operation
— 0 to 3.6V input drive tolerant
— Able to accept “noisy” clock sources
Internal low jitter PLL for 480MHz Hi-Speed USB
operation
Internal detection of the value of resistance to ground
on the ID pin
Integrated battery to 3.3V LDO regulator
Carkit UART mode for non-USB serial data transfers
Integrated USB Switch
—
—
—
—
—
Allows single USB port of connection
High speed data
Battery charging
Stereo and mono/mic audio
USB1.1 data
Industrial Operating Temperature -40°C to +85°C
Packaging Options
— 24 pin QFN lead-free RoHS compliant package
(4 x 4 x 0.90 mm height)
— 25 ball VFBGA lead-free RoHS compliant package also
available; (3 x 3 x 0.88mm height)
Applications
The USB3311 is targeted for any application where a HiSpeed USB connection is desired and when board
space, power, and interface pins must be minimized.
The USB3311 is well suited for:
Cell Phones
PDAs
MP3 Players
GPS Personal Navigation
Scanners
External Hard Drives
Digital Still and Video Cameras
Portable Media Players
Entertainment Devices
Printers
Set Top Boxes
Video Record/Playback Systems
IP and Video Phones
Gaming Consoles
POS Terminals
— 2.2uF bypass capacitor
— 100mV dropout voltage
Integrated ESD protection circuits
— Up to +-15kV without any external devices
SMSC USB3311
PRODUCT PREVIEW
Revision 1.3 (11-02-07)
Hi-Speed USB Transceiver with 1.8V ULPI Interface - 26MHz Reference Clock
Order Number(s):
USB3311-CP-TR FOR 24 PIN, QFN LEAD-FREE ROHS COMPLIANT PACKAGE (TAPE AND REEL)
USB3311-GJ-TR FOR 25 PIN, VFBGA LEAD-FREE ROHS COMPLIANT PACKAGE (TAPE AND REEL)
REEL SIZE IS 4000 PIECES.
80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123
Copyright © 2007 SMSC or its subsidiaries. All rights reserved.
Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete information sufficient for
construction purposes is not necessarily given. Although the information has been checked and is believed to be accurate, no responsibility is assumed for inaccuracies. SMSC
reserves the right to make changes to specifications and product descriptions at any time without notice. Contact your local SMSC sales office to obtain the latest specifications
before placing your product order. The provision of this information does not convey to the purchaser of the described semiconductor devices any licenses under any patent
rights or other intellectual property rights of SMSC or others. All sales are expressly conditional on your agreement to the terms and conditions of the most recently dated
version of SMSC's standard Terms of Sale Agreement dated before the date of your order (the "Terms of Sale Agreement"). The product may contain design defects or errors
known as anomalies which may cause the product's functions to deviate from published specifications. Anomaly sheets are available upon request. SMSC products are not
designed, intended, authorized or warranted for use in any life support or other application where product failure could cause or contribute to personal injury or severe property
damage. Any and all such uses without prior written approval of an Officer of SMSC and further testing and/or modification will be fully at the risk of the customer. Copies of
this document or other SMSC literature, as well as the Terms of Sale Agreement, may be obtained by visiting SMSC’s website at http://www.smsc.com. SMSC is a registered
trademark of Standard Microsystems Corporation (“SMSC”). Product names and company names are the trademarks of their respective holders.
SMSC DISCLAIMS AND EXCLUDES ANY AND ALL WARRANTIES, INCLUDING WITHOUT LIMITATION ANY AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND AGAINST INFRINGEMENT AND THE LIKE, AND ANY AND ALL WARRANTIES ARISING FROM ANY COURSE
OF DEALING OR USAGE OF TRADE. IN NO EVENT SHALL SMSC BE LIABLE FOR ANY DIRECT, INCIDENTAL, INDIRECT, SPECIAL, PUNITIVE, OR CONSEQUENTIAL
DAMAGES; OR FOR LOST DATA, PROFITS, SAVINGS OR REVENUES OF ANY KIND; REGARDLESS OF THE FORM OF ACTION, WHETHER BASED ON CONTRACT;
TORT; NEGLIGENCE OF SMSC OR OTHERS; STRICT LIABILITY; BREACH OF WARRANTY; OR OTHERWISE; WHETHER OR NOT ANY REMEDY OF BUYER IS HELD
TO HAVE FAILED OF ITS ESSENTIAL PURPOSE, AND WHETHER OR NOT SMSC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Revision 1.3 (11-02-07)
2
PRODUCT PREVIEW
SMSC USB3311
Hi-Speed USB Transceiver with 1.8V ULPI Interface - 26MHz Reference Clock
General Description
The USB3311 is a highly integrated Hi-Speed USB2.0 Transceiver (PHY) that supports systems
architectures based on a 26MHz reference clock. It is designed to be used in both commercial and
industrial temperature applications.
The USB3311 meets all of the electrical requirements to be used as a Hi-Speed USB Host, Device, or
an On-the-Go (OTG) device. In addition to the supporting USB signaling the USB3311 also provides
USB UART mode and USB Audio mode.
USB3311 uses the industry standard UTMI+ Low Pin Interface (ULPI) to connect the USB PHY to the
Link. The industry standard ULPI interface uses a method of in-band signaling and status byte transfers
between the Link and PHY, to facilitate a USB session. By using in-band signaling and status byte
transfers the ULPI interface requires only 12 pins.
The USB3311 uses SMSC’s “wrapper-less” technology to implement the ULPI interface. This “wrapperless” technology allows the PHY to achieve a low latency transmit and receive time. SMSC’s low
latency transceiver allows an existing UTMI Link to be reused by adding a UTMI to ULPI bridge. By
adding a bridge to the ASIC the existing and proven UTMI Link IP can be reused.
REFCLK
ID
DP
DM
ESD Protection
VBUS
Low Jitter
Integrated
PLL
OTG
Hi-Speed
USB
Transceiver
ULPI
Registers
and State
Machine
BIAS
RBIAS
Integrated
Power
Management
RESETB
VBAT
VDD33
VDD18
ULPI
Interface
STP
NXT
DIR
CLKOUT
SPKR_R/M
SPKR_L
Carkit
DATA[7:0]
Figure 1 USB3311 Block Diagram
SMSC USB3311
3
PRODUCT PREVIEW
Revision 1.3 (11-02-07)
Hi-Speed USB Transceiver with 1.8V ULPI Interface - 26MHz Reference Clock
The USB3311 is designed to run with a 26MHz reference clock. By using a reference clock from the
Link the USB3311 is able to remove the cost of a crystal reference from the design.
The USB3311 includes a integrated 3.3V LDO regulator to generate its own supply from power applied
at the VBAT pin. The voltage on the VBAT pin can range from 3.1 to 5.5V. The regulator dropout
voltage is less than 100mV which allows the PHY to continue USB signaling when the voltage on
VBAT drops to 3.1V. The USB transceiver will continue to operate at lower voltages, although some
parameters may be outside the limits of the USB specifications. If the user would like to provide a 3.3V
supply to the USB3311, the VBAT and VDD3.3 pins should be connected together.
The USB3311 also includes integrated pull-up resistors that can be used for detecting the attachment
of a USB Charger. By sensing the attachment to a USB Charger, a product using the USB3311 can
charge its battery at more than the 500mA allowed when charging from a USB Host.
The USB3311 also includes support for USB audio modes. The user can program the PHY into UART
or audio mode while in synchronous mode.
In USB UART mode, the USB3311 DP and DM pins are redefined to enable pass-through of
asynchronous serial data. The USB3311 can only enter UART mode when the user programs the part
into this mode.
In USB audio mode, the DP pin is shorted to the SPKR_R/M pin with a switch. The DM pin is shorted
to the SPKR_L pin. These switches are on when the RESETB pin of the USB3311 is asserted. Audio
signals may be transferred over the USB cable. In addition to audio signals, the switches can also be
used to connect Full Speed USB from another PHY onto the USB cable.
Revision 1.3 (11-02-07)
4
PRODUCT PREVIEW
SMSC USB3311
Hi-Speed USB Transceiver with 1.8V ULPI Interface - 26MHz Reference Clock
USB3311 Pin Locations and Descriptions
Package Diagram with Pin Locations
RBIAS
REFCLK
RESETB
VDD1.8
STP
DIR
24
23
22
21
20
19
The pinout below is viewed from the top of the package.
ID
1
18
NXT
VBUS
2
17
DATA0
VBAT
3
16
DATA1
VDD3.3
4
15
DATA2
DM
5
14
DATA3
DP
6
13
CLKOUT
11
12
DATA5
DATA4
9
DATA7
10
8
SPKR_L
DATA6
7
SPKR_R/M
24Pin QFN
4x4mm
Figure 2 USB3311 QFN Pinout - Top View
SMSC USB3311
5
PRODUCT PREVIEW
Revision 1.3 (11-02-07)
Hi-Speed USB Transceiver with 1.8V ULPI Interface - 26MHz Reference Clock
1
2
3
4
5
A
B
C
D
E
TOP VIEW
Figure 3 USB3311 VFBGA Pinout - Top View
Pin Definitions
The following table details the pin definitions for the figure above.
Table 1 USB3311 Pin Description
PIN/
BALL
1
B1
NAME
ACTIVE
LEVEL
Input,
Analog
N/A
ID pin of the USB cable. For non-OTG
applications this pin can be floated. For
an A-Device ID is grounded. For a BDevice ID is floated.
I/O,
Analog
N/A
VBUS pin of the USB cable. This pin is
used for the Vbus comparator inputs and
for Vbus pulsing during session request
protocol.
Power
N/A
Regulator input. The regulator supply can
be from 5.5V to 3.1V.
ID
2
C1
VBUS
3
C2
VBAT
Revision 1.3 (11-02-07)
DIRECTION/
TYPE
6
PRODUCT PREVIEW
DESCRIPTION
SMSC USB3311
Hi-Speed USB Transceiver with 1.8V ULPI Interface - 26MHz Reference Clock
Table 1 USB3311 Pin Description (continued)
PIN/
BALL
NAME
DIRECTION/
TYPE
ACTIVE
LEVEL
Power
N/A
3.3V Regulator Output. A 2.2uF (
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