ISL54222A_10 Datasheet, PDF (1/19 Pages) Intersil Corporation – High-Speed USB 2.0 (480Mbps) Multiplexer

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
µTQFN, 10 Ld 2.1mmx1.6mm µTQFN, 10 Ld TDFN and
10 Ld MSOP packages. It operates over a temperature
range of -40° to +85°C.
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
• Application Note AN1450 “ISL54222AIRUEVAL1Z
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 @ V_DD = 3V . . . . . . . . 4.4Ω
• Low ON-Resistance @ V_DD = 1.8V . . . . . . . 5.7Ω
• Single Supply Operation (V_DD) . . . . . 1.8V to 3.3V
• Available in µTQFN, 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
Applications*(see page 15)
• 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
VBUS
D-
V_DD
ISL54222A
SEL
OE
LOGIC
HSD1-
D-
HSD1+
D+
D+
GND
HSD2-
HSD2+
GND
µCONTROLLER
USB
HIGH-SPEED
OR
FULL-SPEED
TRANSCEIVER
USB
HIGH_SPEED
OR
FULL-SPEED
TRANSCEIVER
PORTABLE MEDIA DEVICE
TIME SCALE (0.2ns/DIV)
February 4, 2010
FN6902.1
1
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.