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The Intersil ISL54206A 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 ISL54206A logic control pins are 1.8V compatible, which allows for control via a standard µcontroller. With a V_DD voltage in the range of 2.7V to 3.6V, the IN pin voltage can exceed the V_DD rail allowing for the USB 5V V_BUS voltage from a computer to directly drive the IN pin to switch between the audio and USB signal sources in the portable device. The part has an audio enable control pin to open all the switches and put the part in a low power state.

The ISL54206A is available in a small 10 Ld 2.1mmx1.6mm ultra-thin µTQFN package and a 10 Ld 3mmx3mm TDFN package. It operates over a temperature range of -40°C to +85°C.

Key Features

• High Speed (480Mbps) and Full Speed (12Mbps) Signaling Capability per USB 2.0
• Low Distortion Negative Signal Capability
• Control Pin to Open all Switches and Enter Low Power State
• Low Distortion Headphone Audio Signals
  • THD+N at 20mW into 32Ω Load: <0.1%
• Cross-talk Audio Channels (20Hz to 20kHz): -110dB
• Single Supply Operation (VDD): 2.5V to 5.5V
• -3dB Bandwidth USB Switches: 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