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This literature is subject to all applicable copyright laws and is not for resale in any manner.FSA801 USB2.0 High-Speed (480Mbps), UART, and Audio Switch with Negative Signal Capability November 2012 FSA801 USB2.0 High-Speed (480 Mbps), UART, and Audio Switch with Negative Signal Capability Features Description The FSA801 is a 3:1 USB accessory switch that enables 3:1 Switch Handles: USB data, stereo and mono audio, microphone, and - Audio Headsets UART data to share a common connector port. Two - UART ports are designed for high-speed USB 2.0 signaling, - Up to Two High- and Low-Speed USB Data while also capable of full-speed USB and UART communication. The architecture allows audio signals to USB Charger Detection and Indication, Compliant swing below ground so a common USB and headphone with USB Battery Charging Specification, Rev 1.1 jack can be used for personal media players and - Supports Data Contact Detect (DCD) portable peripheral devices. Negative-Swing-Capable Audio Channel FSA801 detects wall chargers through a dedicated pin that provides the baseband with charger detection. The Built-in Termination Resistors for Audio Pop charger function is compliant with USB Battery Charging Reduction Specification, Rev 1.1, implementing Data Contact Detect Simple Switch Control Using Three Select Pins (DCD) before detecting a charger. The FSA801 indicates if a Dedicated Charging Port (DCP) or a Charging 28 V Over-Voltage Tolerance on V BUS Downstream Port (CDP) has been connected. The FSA801 meets both USB Rev. 2.0 and micro-USB Applications specifications. Cell Phones, MP3 Players, PDAs Ordering Information Operating Part Number Top Mark Package Temperature Range 16-Lead Quad, 1.8 x 2.6 mm Ultrathin Molded FSA801UMX -40 to +85C KL Leadless Package (UMLP) Figure 1. Typical Application 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA801 Rev.1.0.3