FSA321 Datasheet | Fairchild Semiconductor

Features - Audio: 1.8 Typical On Resistance - HS-USB: 8 Typical On Resistance - HS-USB: 5p F Typical On Capacitance - USB Path -3db Bandwidth: > 720MHz - Negative Swing Capable Audio Channel - Power-off Protection on mon D+/R, D-/L Ports - Automatic USB Detection (Configurable) - OVT on all I/O Ports - Flow-Through Pin Out Eliminates PCB Vias - Built-In Termination on Unselected Audio Paths to Inhibit Audio Pop Applications - MP3, Cell Phone, PDA, Digital Camera, and Notebook - LCD Monitor, TV, and Set-Top Box Description The FSA321 is a Double-Pole, Double Throw (DPDT) multiplexer that bines a low-distortion audio and a USB2.0 High-Speed (HS) switch path. This configuration enables audio and USB data to share a mon connector port. The architecture is designed to allow audio signals to swing below ground. This means a mon USB and headphone jack can be used for personal media players and portable peripheral devices. Since USB2.0 is an industry standard for shared datapath in portable devices, FSA321 can be configured for automatic VBUS detection. The FSA321 includes a power-off feature as well as over-voltage tolerance to minimize current consumption when VSW exceeds VCC. Typical applications involve switching in portables and consumer applications, such as cell phones, digital cameras, and notebooks with hubs or controllers. . Ordering Information Part Number Package Number Top Mark Package Description FSA321UMX MLP010A 10-Lead Quad, Ultrathin Molded Leadless Package (MLP), 1.4 x 1.8mm © 2007 Fairchild Semiconductor Corporation FSA321 - Rev 1.0.6 Figure 1. Analog Symbol .fairchildsemi. - USB2.0 Hi-Speed and Audio Switches with Negative Signal Capability Pin Configuration L3 GND 4 A/LP Sel 5 R D21 10 D + 9 V CC 67 D-/L D+/R 8 USB...