ISL54200_07 Datasheet, PDF (1/16 Pages) Intersil Corporation – USB 2.0 High/Full Speed Multiplexer

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Data Sheet
July 11, 2007
ISL54200
FN6408.1
USB 2.0 High/Full Speed Multiplexer
The Intersil ISL54200 dual 2:1 multiplexer IC is a single
supply part that can operate from a single 2.7V to 5.5V supply.
It contains two SPDT (Single Pole/Double Throw) switches
configured as a DPDT. The part was designed for switching
between USB High-Speed and USB Full-Speed sources in
portable battery powered products.
The 7Ω normally-closed (NC) FSx switches can swing rail-to-
rail and were specifically designed to pass USB full speed
data signals (12Mbps) that range from 0V to 3.6V. The 4.5Ω
normally-open (NO) HSx switches have high bandwidth and
low capacitance and were specifically designed to pass USB
high speed data signals (480Mbps) with minimal distortion.
The part can be used in Personal Media Players and other
portable battery powered devices that need to switch between
a high-speed transceiver and a full-speed transceiver while
connected to a single USB host (computer).
The digital logic inputs are 1.8V logic compatible when
operated with a 2.7V to 3.6V supply. The part has an enable
pin to open all switches. It can be used to facilitate proper bus
disconnect and connection when switching between the USB
sources.
The ISL54200 is available in a 10 Ld 3mmx3mm TDFN and a
small 10 Ld 2.1mmx1.6mm µTQFN packages. It operates
over a temperature range of -40 to +85°C.
Application Block Diagram
Features
• High Speed (480Mbps) and Full Speed (12Mbps)
Signaling Capability per USB 2.0
• 1.8V Logic Compatible (2.7V to +3.6V supply)
• Enable Pin to Open all Switches
• -3dB Frequency
- HSx Switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 880MHz
- FSx Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 550MHz
• Crosstalk @ 1MHz. . . . . . . . . . . . . . . . . . . . . . . . . . -70dB
• Off Isolation @ 100kHz . . . . . . . . . . . . . . . . . . . . . . -98dB
• Single Supply Operation (V_DD) . . . . . . . . . . . . 2.7V to 5.5V
• Available in Ultra-thin µTQFN and TDFN Packages
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• MP3 and other Personal Media Players
• Cellular/Mobile Phones
• PDA’s
• Digital Cameras and Camcorders
VBUS
D-
D+
GND
3.3V
V_DD
ISL54200
IN
LOGIC CIRCUITRY
COMD1
EN
4MΩ
HSD1
HSD2
COMD2
GND
FSD1
FSD2
µCONTROLLER
USB
HIGH-SPEED
TRANSCEIVER
USB
FULL-SPEED
TRANSCEIVER
PORTABLE MEDIA DEVICE
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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