Fairchild Semiconductor’s FSUSB23 is the smallest single-port USB 2.0 high-speed (480 Mbps) analog switch in a MicroPak chip scale package (CSP). Its compact packaging, combined with very low power consumption (<1 uA) and wide bandwidth (>720 MHz) operation, make it suitable for multifunctional cell phones. Fairchild’s 1.6 mm x 2.1 mm MicroPak 10-terminal CSP package delivers a 68% footprint reduction compared to typical competitive switches (3.36 mm2 vs. 10.5 mm2). Additional applications for the FSUSB23 include PDAs, MP3 players, digital cameras and laptops.

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The FSUSB23’s ability to switch high-speed USB signals allows it to pass the eye diagram compliance for ac and dc performance to meet the USB 2.0 high-speed standard. It also retains complete USB 1.1 full-speed (12 Mbps) reverse compatibility for use in a range of applications.

Other key design features include higher 7 kV electrostatic discharge (ESD) vs. typical 2 kV ESD in competing components, providing greater application robustness. Six Ohms typical on-resistance (RON) improves noise margin, the non-adjacent channel crosstalk (-43 dB at 250 MHz) minimizes signal interference, and the choice of a 16-terminal DQFN package offers better suitability for notebooks and other larger portable applications.

The lead (Pb)-free FSUSB23 meets or exceeds the requirements of the joint IPC/JEDEC standard J-STD-020B and is compliant with European Union requirements. It is priced at $0.97 each (1000 pieces) for either package configuration.