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ISL54222A
High-Speed USB 2.0 (480Mbps) Multiplexer
ISL54222A
The Intersil ISL54222A is a single supply dual 2:1
multiplexer that can operate from a single 1.8V to 3.3V
supply. It contains two SPDT (Single Pole/Double
Throw) switches configured as a DPDT. The part was
designed for switching or routing of USB High-Speed
signals and/or USB Full-speed signals in portable
battery powered products.
The 4.4Ω switches can swing rail-to-rail and were
specifically designed to pass USB full speed data signals
that range from 0V to 3.3V and USB high-speed data
signals that range from 0V to 400mV with a single
supply as low as 1.8V. They have high bandwidth and
low capacitance to pass USB high speed data signals
with minimal distortion.
The digital logic inputs are 1.8V logic compatible when
operated with a 1.8V to 3.3V supply. The ISL54222A
has an output enable pin to open all the switches and
put the part in a low power state.
The ISL54222A is available in 10 Ld 1.8mmx1.4mm
TQFN, 10 Ld 2.1mmx1.6mm TQFN, 10 Ld TDFN and
10 Ld MSOP packages. It operates over a temperature
range of -40° to +85°C.
Related Literature
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
Evaluation Board User’s Manual”
Features
High-Speed (480Mbps) and Full-Speed (12Mbps)
Signaling Capability per USB 2.0
1.8V Logic Compatible
Low Power All Off State
Power OFF Protection
D-/D+ Pins Overvoltage Tolerant to 5.5V
-3dB Frequency . . . . . . . . . . . . . . . . . . 780MHz
Low ON Capacitance @ 240MHz . . . . . . . . . 4.2pF
Low ON-Resistance @ VDD = 3V . . . . . . . . 4.4Ω
Low ON-Resistance @ VDD = 1.8V . . . . . . . 5.7Ω
Single Supply Operation (VDD) . . . . . 1.8V to 3.3V
Available in TQFN, TDFN, MSOP Packages
Pb-Free (RoHS Compliant)
Compliant with USB 2.0 Short Circuit and
Overvoltage Requirements Without Additional
External Components
HBM ESD Performance I/O to GND . . . . . . >12kV
MP3 and other Personal Media Players
Cellular/Mobile Phones
PDA’s
Digital Cameras and Camcorders
USB Switching
Application Block Diagram
USB 2.0 HS Eye Pattern With
Switches In The Signal Path
ISL54222A
USB
TRANSCEIVER
HIGH-SPEED
US
B
CONN
ECTOR
D-
D+
SEL
GND
HSD1-
HSD1+
HSD2-
HSD2+
VDD
OE
LOGIC
CONTROLLER
USB
TRANSCEIVER
FULL-SPEED
VBUS
D-
D+
GND
OR
FULL-SPEED
HIGH_SPEED
OR
PORTABLE MEDIA DEVICE
TIME SCALE (0.2ns/DIV)
VO
LTAGE
SCALE
(0.
1
V/D
IV)
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2009, 2010. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
February 4, 2010
FN6902.1