FSA800 FAIRCHILD | Alldatasheet
Document overview
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Technical content
Features
3:1 Switch Handles: - Audio Headsets - UART - High- and Low-Speed USB Data USB Charger Detection and Indication 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
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 desi gned 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. IMPORTANT NOTE: For additional performance info rmation, please contact analogswitch@fairchildsemi.com.
Ordering Information
FSA800UMX -40 to +85°C JN Gr een 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. VBUS DP_CON DM_CONDP_HOST DM_HOST R_HOST L_HOST RxD_HOST TxD_HOST FSA800 MIC_HOST Charger Detect OVT 3:1 MUX and Charge Pump VCC Switch Control GND CD_N SEL[0] SEL[1] SEL[2] R Figure 1. Functional Block Diagram
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA800 • Rev. 1.0.0 12 FSA800 — USB2.0 High-Speed (480Mbps), UART, and Audio Switch with Negative Signal Capability