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The Intersil ISL54209 dual SPDT (Single Pole/Double Throw) switch combines low distortion audio and accurate USB 2.0 high speed data (480Mbps) signal switching in the same low voltage device. When operated with a 2.5V to 5.0V single supply, this analog switch allows audio signal swings below ground, allowing for the use of a common USB and audio headphone connector in Personal Media Players and other portable battery powered devices.

The ISL54209 logic control pins are 1.8V compatible, which allows for control via a standard µcontroller.

The ISL54209 has an audio enable control pin to open all switches and put the part in a low power state. In this state, the device draws typically 1nA of current.

The ISL54209 is available in a small 10 Ld 1.8mm x 1.4mm or 2.1mmx 1.6mm ultra-thin µTQFN packages 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
• Low Power Shutdown State
• Low Distortion Headphone Audio Signals
  • THD+N at 1mW into 32Ω Load: <0.013%
• Crosstalk (100kHz): -95dB
• OFF-Isolation (100kHz): 95dB
• Single Supply Operation (VDD): 2.5V to 5.0V
• -3dB Bandwidth USB Switch: 736MHz
• Available in µTQFN and TDFN Packages
• COM Pins Over-voltage Tolerant to 5.5V
• Compliant with USB 2.0 Short Circuit Requirements Without Additional External Components
• Pb-Free (RoHS Compliant)

Applications

• MP3 and other Personal Media Players
• Cellular/Mobile Phones
• PDAs
• Audio/USB Switching