DATASHEET ISL54210 FN6661 Rev 2.00 MP3/USB 2.0 High Speed Switch with Negative Signal Handling/Click and Pop March 18, 2010 Suppression The Intersil ISL54210 dual SPDT (Single Pole/Double Features Throw) switch combines low distortion audio and High Speed (480Mbps) and Full Speed (12Mbps) accurate USB 2.0 high-speed data (480Mbps) signal Signaling Capability per USB 2.0 switching in the same low voltage device. When operated with a 2.7V to 3.6V single supply, these Detection of V Voltage on USB Cable BUS analog switches allow audio signal swings below- Low Distortion Negative Signal Capability ground, allowing the use of a common USB and audio Clickless/Popless Audio Switches headphone connector in Personal Media Players and Enable Pin to Open all Switches other portable battery powered devices. Low Distortion Headphone Audio Signals The ISL54210 incorporates circuitry for the detection of the USB V voltage, which is used to switch - 0.014% THD+N at 1mW into 32Load BUS between the audio and USB signal sources. -100dB Crosstalk (20Hz to 20kHz) It has an enable pin (CTRL) to open all switches and 95dB Off-Isolation (20Hz to 100kHz) activate the audio click/pop (C/P) circuitry. The high 2.7V to 3.6V Single Supply Operation (V ) DD off-isolation and special C/P circuitry of the audio 700MHz of -3dB Bandwidth USB Switch switches eliminates click and pops in the head-phones when the audio CODEC drivers are powering up/down 4.2pF of low ON Capacitance 240MHz or when a headphone is inserted or removed from the Available in TQFN and TDFN Packages jack. Compliant with USB 2.0 Short Circuit Its available in a tiny 10 Ld 1.8mmx1.4mm ultra-thin Requirements Without Additional External TQFN package and a 10 Ld 3mmx3mm TDFN Components package. It operates over a temperature range of Pb-Free (RoHS Compliant) -40C to +85C. Applications* (see page 19) Related Literature (see page 19) MP3 and other Personal Media Players Technical Brief TB363 Guidelines for Handling and Processing Moisture Sensitive Surface Mount Cellular/Mobile Phones Devices (SMDs) PDAs Application Note AN1407 ISL54210EVAL1Z Audio/USB Switching Evaluation Board Users Manual Application Block Diagram CONTROLLER 3.3V V DD ISL54210 V CTRL BUS LOGIC CONTROL 4M 4M V BUS USB HIGH-SPEED TRANSCEIVER D- COM - D+ 200k COM + 200k R CLICK AND L POP AUDIO CODEC GND FN6661 Rev 2.00 Page 1 of 21 March 18, 2010 USB/HEADPHONE JACKISL54210 Pin Configurations (Note 1) ISL54210 ISL54210 (10 LD 1.8mmx1.4mm TQFN) (10 LD 3.0mmx3.0mm TDFN) TOP VIEW TOP VIEW D+ L 7 6 PD CTRL 10 V 1 DD 4M LOGIC D- R 8 5 D- CLICK/POP 2 CONTROL 9 V BUS 4M D+ CTRL COM - 3 8 GND 9 4 200k COM + 4 7 L V 10 COM + 3 DD CLICK/ 200k POP 6 GND 5 R 1 2 V COM - BUS NOTE: 1. Switches Shown for V = Logic 0 and CTRL = Logic 1. BUS Truth Table Pin Descriptions ISL54210 ISL54210 TQFN TDFN NAME FUNCTION V CTRL L, R D+, D- BUS 12 V Digital Control Input 00 OFF OFF BUS 2 3 COM- Voice and Data Common Pin 0 1 ON OFF 3 4 COM+ Voice and Data Common Pin 1X OFF ON 4 5 GND Ground Connection CTRL: Logic 0 when 0.5V or Floating, Logic 1 when 5 6 R Audio Right Input 1.4V V : Logic 0 when V + 0.2V or Floating, Logic 1 BUS DD 6 7 L Audio Left Input when V + 0.8V DD 7 8 D+ USB Differential Input 8 9 D- USB Differential Input 9 10 CTRL Digital Control Input (Audio Enable) 10 1 V Power Supply DD - PD PD Thermal Pad. Tie to Ground or Float FN6661 Rev 2.00 Page 2 of 21 March 18, 2010 LOGIC CONTROL