FSA2380: Low Ron (0.75 Ohm) 3:1 Negative Swing Audio Source Switch

The FSA2380 is a Double-Pole, Triple Throw (DP3T) multiplexer that routes three dual-channel sources of data or audio under the control of a single pair of select pins. The FSA2380 has special circuitry on the 1A/2A pins to allow a power-off feature. With the VCC supply removed and voltage on the 1A/2A pins, there is minimal leakage current into the 1A/2A data pins. The FSA2380 also features very low quiescent current and a power-off feature to extend battery life. The low quiescent current feature allows mobile handset applications direct interface with the baseband processor general-purpose I/Os. Typical applications involve switching in portables and consumer applications, such as cell phones, digital cameras, and notebooks with hubs or controllers.

Features

• 10µA Maximum ICCT Current Over Expanded Control Voltage Range (V_IN=2.6V, V_CC=4.3V)
• On Capacitance 70pF Typical
• 0.75Ω Typical On Resistance (R_ON)
• 1Bn, 2Bn Ports Support Negative Swing Audio to -2V
• -3db Bandwidth: > 120 MHz Low Power Consumption (1µA Maximum)
• Power-Off Feature for 1A/2A Pin (I_IN <2µA)
• Packaged in Pb-Free 14-Pin TSSOP and DQFN

Application Notes