Datenblatt-Suchmaschine für elektronische Bauteile |
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ISL54205BIRTZ-T Datenblatt(PDF) 1 Page - Intersil Corporation |
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ISL54205BIRTZ-T Datenblatt(HTML) 1 Page - Intersil Corporation |
1 / 16 page 1 ® FN6557.0 ISL54205B MP3/USB 2.0 High Speed Switch with Negative Signal Handling The Intersil ISL54205B dual SPDT (Single Pole/Double Throw) switches combine low distortion audio and accurate USB 2.0 high speed data (480Mbps) signal switching in the same low voltage device. When operated with a 2.7V to 3.6V single supply these analog switches allow audio signal swings below-ground, allowing the use of a common USB and audio headphone connector in Personal Media Players and other portable battery powered devices. The ISL54205B incorporates circuitry for detection of the USB VBUS voltage, which is used to switch between the audio and USB signal sources in the portable device. The part has a control pin to open all the switches and put the part in a low power down state. The ISL54205B is available in a small 10 Ld 2.1mmx1.6mm ultra-thin µTQFN package and a 10Ld 3mmx3mm TDFN package. It operates over a temperature range of -40 to +85°C. Related Literature • Application Note AN1280 “ISL54205EVAL1Z Evaluation Board User’s Manual. • Technical Brief TB363 “Guidelines for Handling and Processing Moisture Sensitive Surface Mount Devices (SMDs)” • Application Note AN557 “Recommended Test Procedures for Analog Switches” Features • High Speed (480Mbps) and Full Speed (12Mbps) Signaling Capability per USB 2.0 • Low Distortion Negative Signal Capability • Detection of VBUS Voltage on USB Cable • Control Pin to Open all Switches and Enter Low Power State • Low Distortion Headphone Audio Signals - THD+N at 20mW into 32 Ω Load . . . . . . . . . . . . . <0.1% • Cross-talk (20Hz to 20kHz) . . . . . . . . . . . . . . . . . . -110dB • Single Supply Operation (VDD) . . . . . . . . . . . . 2.7V to 3.6V • -3dB Bandwidth USB Switch . . . . . . . . . . . . . . . . . 630MHz • Available in µTQFN and TDFN Packages • Pb-Free (RoHS Compliant) • Compliant with USB 2.0 Short Circuit Requirements Without Additional External Components Applications • MP3 and Other Personal Media Players • Cellular/Mobile Phones •PDA’s • Audio/USB Switching Application Block Diagram ISL54205B USB TRANSCEIVER HIGH-SPEED CODEC COM - COM + VBUS GND D- D+ L R VDD CTRL LOGIC CIRCUITRY µCONTROLLER 22k Ω 4M Ω 4M Ω 50k Ω 50k Ω Data Sheet September 25, 2007 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. 2007. All Rights Reserved All other trademarks mentioned are the property of their respective owners. |
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