ISL54200 Datasheet, PDF (1/18 Pages) Intersil Corporation – USB 2.0 High/Full Speed Multiplexer

USB 2.0 High/Full Speed Multiplexer
ISL54200
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 package. It
operates over a temperature range of -40°C to +85°C.
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 (RoHS Compliant)
Applications*(see page 16)
• MP3 and other Personal Media Players
• Cellular/Mobile Phones
• PDA’s
• Digital Cameras and Camcorders
Related Literature*(see page 16)
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”.
• Application Note AN1330 “ISL54200EVAL1Z
Evaluation Board User’s Manual”
Application Block Diagram
VBUS
D-
D+
GND
3.3V
V_DD
ISL54200
IN
LOGIC
COMD1
COMD2
GND
EN
4MΩ
HSD1
HSD2
FSD1
FSD2
µCONTROLLER
USB
HIGH-SPEED
TRANSCEIVER
USB
FULL-SPEED
TRANSCEIVER
PORTABLE MEDIA DEVICE
June 17, 2010
FN6408.2
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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