Overview
Description
The ISL54211 dual Single Pole/Double Throw (SPDT) 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 5.0V 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 ISL54211 logic control pins are 1.8V compatible with a supply voltage of 2.7V to 3.6V, which allows for control via a standard microcontroller. The part has an audio enable control pin (CTRL) to open all in-line switches and activate the audio click and pop circuitry. The high off-isolation and special click/pop circuitry of the audio switches eliminate clicks and pops in the headphones when the audio CODEC drivers are powering up or down or when a headphone is inserted or removed from the headphone jack. It's available in a tiny 10 Ld 1.8mm x 1.4mm ultra-thin µTQFN package and a 10 Ld 3mm x 3mm TDFN package. It operates over a temperature range of -40 °C to +85 °C.
Features
- High-speed (480Mbps) and full-speed (12Mbps) signaling capability per USB 2.0
- Low distortion negative signal capability
- Clickless/Popless audio switches
- Enable pin to open all switches
- Low distortion headphone audio signals
- THD+N at 1mW into 32Ω load 0.014%
- Cross-talk (20Hz to 20kHz) -100dB
- OFF isolation (20Hz to 100kHz) 95dB
- Single supply operation (VDD) 2.7V to 5.0V
- -3dB bandwidth USB switch 700MHz
- Available in µTQFN and TDFN packages
- Compliant with USB 2.0 short circuit requirements without additional external components
- Pb-free plus anneal (RoHS compliant)
Comparison
Applications
- MP3 and other personal media players
- Cellular/Mobile phones
- PDAs
- Audio/USB switching
Documentation
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Type | Title | Date |
Datasheet | PDF 1.53 MB | |
Product Advisory | PDF 414 KB | |
Product Change Notice | PDF 205 KB | |
3 items
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Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
