ISL54400, ISL54401, ISL54402 Data Sheet July 12, 2006 FN6240.3 Low Voltage, Dual SPDT, USB/Audio Features Switches with Negative Signal Capability Low Distortion Negative Signal Capability The Intersil ISL54400, ISL54401, ISL54402 dual SPDT Detection of V Voltage on USB Cable (ISL54400 and BUS (Single Pole/Double Throw) switches combine low distortion ISL54401) audio and accurate USB 2.0 full speed data signal switching Generation of V Voltage for USB D+/D- Pull-up TERM in the same low voltage device. When operated with a 2.5V to Resistor (ISL54400) 3.6V single supply these analog switches allow audio signal swings below-ground, allowing the use of a common USB and Low Distortion Headphone Audio Signals audio headphone connector in Personal Media Players and - THD+N at 12mW into 32 Load . <0.007% other portable battery powered devices. Cross-talk (20Hz to 20kHz) -110dB The ISL54400 and ISL54401 incorporate circuitry for 1.8V Logic Compatible (ISL54402) detection of the USB V voltage, which is used to switch BUS Single Supply Operation (V ) between the audio and USB signal source in the portable DD device. In addition, the ISL54400 includes circuitry for - ISL54400 and ISL54401 2.5V to 3.6V generation of a V voltage of 3.3V for use with USB - ISL54402 1.8V to 5.5V TERM speed setting pull-up resistor. Available in Ultra-thin QFN and TDFN Packages The ISL54400, ISL54401, ISL54402 are available in 10 Ld Pb-Free Plus Anneal Available (RoHS Compliant) 3mm x 3mm TDFN and 10 Ld tiny 2.1mm x 1.6mm ultra-thin TQFN packages. They operate over a temperature range of Applications -40 to +85C. MP3 and other Personal Media Players Related Literature Cellular/Mobile Phones Application Note AN1255 ISL5440XEVAL1Z Evaluation PDAs Board Users Manual USB Switching Technical Brief TB363 Guidelines for Handling and Processing Moisture Sensitive Surface Mount Devices Audio/USB Switching (SMDs) Application Note AN557 Recommended Test Procedures for Analog Switches Application Block Diagram V DD V TERM ISL54400 V BUS USB FULL-SPEED D- D-/L TRANSCEIVER D+ L D+/R R CODEC GND CAUTION: These devices are sensitive to electrostatic discharge follow proper IC Handling Procedures. 1 1-888-INTERSIL or 1-888-468-3774 Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2006. All Rights Reserved All other trademarks mentioned are the property of their respective owners. USB/HEADPHONE JACKISL54400, ISL54401, ISL54402 Pinouts (Note 1) ISL54400 (TDFN, TQFN) TOP VIEW V TERM 10 POWER/LOGIC V 10 V DD 1 TERM 5.3k CONTROL 5.3k D- 9 1 V DD V BUS 9 2 D - POWER/LOGIC CONTROL 2M D+ 2 8 V 2M BUS 3 8 D-/L D + L 3 7 D-/L 4 7 L D +/R 50k 50k 6 4 GND 5 6 R D+/R R 50k 50k 5 GND ISL54401 (TDFN, TQFN) TOP VIEW N.C, 10 POWER/LOGIC POWER/LOGIC V 1 10 N.C. DD D- 9 1 CONTROL CONTROL V DD V 9 BUS 2 D - D+ 2 8 2M V 2M BUS 8 D-/L 3 D + L 3 7 D-/L D +/R 4 7 L 50k 50k 6 4 D+/R R 5 6 GND R 50k 50k 5 GND ISL54402 (TDFN, TQFN) TOP VIEW IN1 10 LOGIC V 1 10 IN1 DD CONTROL LOGIC V NO1 DD 1 9 CONTROL IN2 9 2 NO1 NO2 IN2 2 8 8 COM1 3 NO2 COM1 7 NC1 3 COM2 4 7 NC1 50k 50k NC2 COM2 4 6 5 6 GND NC2 50k 50k 5 GND NOTE: 1. ISL54400, ISL54401 Switches Shown for V not present (or idle). ISL54402 Switches Shown for Logic 0 Inputs. BUS FN6240.3 2 July 12, 2006