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ISL54222A Arkusz danych(PDF) 1 Page - Intersil Corporation |
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ISL54222A Arkusz danych(HTML) 1 Page - Intersil Corporation |
1 / 17 page 1 ® FN6902.0 ISL54222A High-Speed USB 2.0 (480Mbps) Multiplexer 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 5.7 Ω 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 part can be used in Personal Media Players and other portable battery powered devices that need to route USB high-speed signals or full-speed signals to different transceiver sections of the device while connected to a single USB host (computer). 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 puts the part in a low power state. It can be used to facilitate proper bus disconnect and connection when switching between the USB sources. The ISL54222A is available in 10 Ld 1.8mmx1.4mm µTQFN, 10 Ld 2.1mmx1.6mm µTQFN, 10 Ld TDFN and 10Ld MSOP packages. It operates over a temperature range of -40° to +85°C. 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. . . . . . . . . . . . . . . . . . . . . . . . 6.7pF • Low ON-Resistance. . . . . . . . . . . . . . . . . . . . . . . . . . 5.7 Ω • Single Supply Operation (VDD) . . . . . . . . . . . . 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 • MP3 and other Personal Media Players • Cellular/Mobile Phones •PDA’s • Digital Cameras and Camcorders • USB Switching Application Block Diagram PORTABLE MEDIA DEVICE ISL54222A USB TRANSCEIVER HIGH-SPEED D- D+ SEL GND HSD1- HSD1+ HSD2- HSD2+ VDD OE LOGIC CIRCUITRY µCONTROLLER USB TRANSCEIVER FULL-SPEED VBUS D- D+ GND OR FULL-SPEED HIGH_SPEED OR #1 #2 Data Sheet May 13, 2009 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. All Rights Reserved All other trademarks mentioned are the property of their respective owners. |
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