ISL54222AIRU1Z-T

DATASHEET ISL54222A FN6902 Rev 1.00 High-Speed USB 2.0 (480Mbps) Multiplexer February 4, 2010 The Intersil ISL54222A is a single supply dual 2:1 Features multiplexer that can operate from a single 1.8V to High-Speed (480Mbps) and Full-Speed (12Mbps) 3.3V supply. It contains two SPDT (Single Pole/Double Signaling Capability per USB 2.0 Throw) switches configured as a DPDT. The part was designed for switching or routing of USB High-Speed 1.8V Logic Compatible signals and/or USB Full-speed signals in portable Low Power All Off State battery powered products. Power OFF Protection The 4.4switches can swing rail-to-rail and were D-/D+ Pins Overvoltage Tolerant to 5.5V specifically designed to pass USB full speed data -3dB Frequency . 780MHz signals that range from 0V to 3.3V and USB high- speed data signals that range from 0V to 400mV with Low ON Capacitance 240MHz 4.2pF a single supply as low as 1.8V. They have high Low ON-Resistance V = 3V . 4.4 DD bandwidth and low capacitance to pass USB high Low ON-Resistance V = 1.8V 5.7 DD speed data signals with minimal distortion. Single Supply Operation (V ) . 1.8V to 3.3V DD The digital logic inputs are 1.8V logic compatible when Available in TQFN, TDFN, MSOP Packages operated with a 1.8V to 3.3V supply. The ISL54222A has an output enable pin to open all the switches and Pb-Free (RoHS Compliant) put the part in a low power state. Compliant with USB 2.0 Short Circuit and The ISL54222A is available in 10 Ld 1.8mmx1.4mm Overvoltage Requirements Without Additional TQFN, 10 Ld 2.1mmx1.6mm TQFN, 10 Ld TDFN and External Components 10 Ld MSOP packages. It operates over a temperature HBM ESD Performance I/O to GND . >12kV range of -40 to +85C. Applications*(see page 15) Related Literature MP3 and other Personal Media Players Technical Brief TB363 Guidelines for Handling and Cellular/Mobile Phones Processing Moisture Sensitive Surface Mount Devices (SMDs) PDAs Application Note AN1450 ISL54222AIRUEVAL1Z Digital Cameras and Camcorders Evaluation Board Users Manual USB Switching Application Block Diagram USB 2.0 HS Eye Pattern With Switches In The Signal Path CONTROLLER V DD ISL54222A OE SEL LOGIC USB HIGH-SPEED VBUS HSD1- OR D- D- FULL-SPEED HSD1+ TRANSCEIVER HSD2- USB D+ D+ HIGH SPEED OR HSD2+ GND FULL-SPEED GND TRANSCEIVER TIME SCALE (0.2ns/DIV) PORTABLE MEDIA DEVICE FN6902 Rev 1.00 Page 1 of 19 February 4, 2010 USB CONNECTOR VOLTAGE SCALE (0.1V/DIV)ISL54222A ISL54222A Pin Configurations ISL54222A ISL54222A (10 LD 1.8X1.4 TQFN) (10 LD 2.1X1.6 TQFN) TOP VIEW TOP VIEW HSD1- HSD2- 7 6 10 D- 5 OE 8 LOGIC OE SEL 9 1 9 GND CONTROL VDD 4 HSD1- HSD1+ 2 8 SEL 10 3 D+ HSD2+ HSD2- 3 7 1 2 HSD1+ HSD2+ 4 6 D- D+ 5 ISL54222A ISL54222A (10 LD 3X3 TDFN) (10 LD MSOP) TOP VIEW TOP VIEW PD LOGIC LOGIC SEL SEL 1 10 VDD 1 10 VDD CONTROL CONTROL HSD1+ 9 2 OE HSD1+ 9 2 OE HSD2+ 8 3 HSD1- HSD2+ 3 8 HSD1- 4 7 D+ HSD2- D+ 4 7 HSD2- 5 6 GND D- GND 5 6 D- NOTE: 1. Switches Shown for SEL = Logic 1 and OE = Logic 0. Pin Descriptions (Continued) Truth Table TQFN TQFN OE SEL HSD1-, HSD1+ HSD2-, HSD2+ TDFN MSOP 1.8x1.4 2.1x1.6 NAME FUNCTION 0 0 ON OFF 33 2 3 HSD2 USB Data Port 01 OFF ON + (Channel 2 Positive Input) 1X OFF OFF NOTE: Logic 0 when 0.5V, Logic 1 when 1.4V with a 4 4 3 4 D+ USB Data Common Positive Port 1.8V to 3.3V Supply. 5 5 4 5 GND Ground Connection Pin Descriptions 6 6 5 6 D- USB Data Common TQFN TQFN Negative Port TDFN MSOP 1.8x1.4 2.1x1.6 NAME FUNCTION 7 7 6 7 HSD2- USB Data Port 10 10 9 10 VDD Power Supply (1.8V to (Channel 2 Negative 3.3V) Input) 1 1 10 1 SEL Select Logic Control 8 8 7 8 HSD1- USB Data Port Input (Channel 1 Negative Input) 22 1 2 HSD1 USB Data Port + (Channel 1 Positive 99 8 9 OE Bus Switch Enable Input) PD - - - PD Thermal Pad. Tie to Ground or Float FN6902 Rev 1.00 Page 2 of 19 February 4, 2010 LOGIC CONTROL VDD GND