FSA2275AUMX

The FSA2275 / FSA2275A is a high-performance, Double-Pole Double-Throw (DPDT) analog switch with negative swing audio capability. The FSA2275 / FSA2275A features ultra-low audio RoN of 0.5 Ω (typical) at 2.5 V CC. The FSA2275 / FSA2275A operates over a VCC range of 2.5 V to 5.5 V, is fabricated with sub-micron CMOS technology to achieve fast switching speeds, and is designed for break-before-make operation. To minimize pop and click during operation, the turn on ramp time is selectable using an external capacitor (C_EXT). The FSA2275 / FSA2275A features THD+N specifications that target a Hi-Fidelity audio quality into both 32 Ω headphones and line out type loads (> 600 Ω). The FSA2275A removes the shunt resistors which improve noise immunity.

Applications

• Mobile Phone
• Tablet
• Notebook PC
• Media Player

Key features

• VDD Operating Range: 2.5 to 5.5 V
• External Capacitor Connection for Pop and Click Noise Suppression
• Power-Off Protection on Common Ports
• RoN = 0.5 Ω (Typ.) at 2.5 V VDD
• THD+N = -105 dB; 2 VRMS, 20 kΩ Load; f = 1 KHz
• XTALK = -134 dB at 1 VRMS, 50 Ω Load; f = 1 kHz
• Off Isolation = -103 dB at 1 VRMS, 50 Ω Load; f = 1 KHz
• 12-Lead UMLP 1.8 mm × 1.8 mm
• Removed R_SHUNT resistors for FSA2275A