Audio Switch IC 2 Channel 10-UMLP (1.4x1.8)
The FSA2268UMX is a dual SPDT analog switch from ON Semiconductor (formerly Fairchild) that operates over a low supply voltage range (1.65 V to 4.3 V). It provides high-speed signal switching with ultra-low on-resistance (~0.4 Ω typical), making it suitable for audio, data, and general analog signal routing.
It is designed using a break-before-make switching architecture, meaning it disconnects the current path before connecting another, preventing short circuits or signal glitches.
Key Features
Dual SPDT analog switch configuration (2 channels)
Low operating voltage: 1.65 V to 4.3 V
Ultra-low on-resistance (~0.4 Ω typical @ 3 V)
High-speed switching (-3 dB bandwidth > 50 MHz)
Break-before-make switching (prevents signal overlap)
TTL-compatible control inputs
Very low power consumption (low quiescent current)
High ESD protection (up to 16 kV HBM)
Small 10-pin µMLP/UMLP surface-mount package
Operating temperature: -40°C to +85°C
Typical Applications
Smartphones and tablets
Audio signal switching circuits
Digital cameras
Laptops and portable devices
TVs, set-top boxes, LCD systems
General-purpose analog signal routing
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