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| FSA800 -- USB2.0 High-Speed (480Mbps), UART, and Audio Switch with Negative Signal Capability November 2009 FSA800 -- USB2.0 High-Speed (480Mbps), UART, and Audio Switch with Negative Signal Capability Features 3:1 Switch Handles: Audio Headsets UART High- and Low-Speed USB Data USB Charger Detection and Indication Description The FSA800 is a 3:1 USB accessory switch that enables USB data, stereo and mono audio, microphone, and UART data to share a common connector port. It is designed for high-speed USB 2.0 signaling. The architecture is designed to allow audio signals to swing below ground so a common USB and headphone jack can be used for personal media players and portable peripheral devices. FSA800 detects wall chargers through a dedicated pin that provides the baseband with charger detection. The FSA800 meets both USB Rev. 2.0 and micro-USB specifications. - Negative-Swing-Capable Audio Channel Built-in Termination Resistors for Audio Pop Reduction Simple Switch Control Using Three Select Pins 28V Over-Voltage Tolerance on VBUS Applications Cell Phones, MP3 Players, PDAs IMPORTANT NOTE: For additional performance information, please contact analogswitch@fairchildsemi.com. Ordering Information Part Number FSA800UMX Operating Temperature Range -40 to +85C Top Mark JN Eco Status Green Package 16-Lead Quad, UMLP, 1.8 x 2.6mm For Fairchild's definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html. VCC FSA800 MIC_HOST R_HOST L_HOST RxD_HOST TxD_HOST DP_HOST DM_HOST Charger Detect Switch Control R 3:1 MUX and Charge Pump OVT VBUS DP_CON DM_CON SEL[0] SEL[1] SEL[2] CD_N GND Figure 1. Functional Block Diagram (c) 2009 Fairchild Semiconductor Corporation FSA800 * Rev. 1.0.2 www.fairchildsemi.com FSA800 -- USB2.0 High-Speed (480Mbps), UART, and Audio Switch with Negative Signal Capability www.fairchildsemi.com (c) 2009 Fairchild Semiconductor Corporation FSA800 * Rev. 1.0.2 15 |
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