The TS3A226AEYFFR from Texas Instruments is a compact, autonomous audio jack switch that detects and routes 3- and 4-pole 3.5 mm headset accessories. It features low on-resistance ground FETs, FM antenna support, and built-in EMI suppression, all packed into an ultra-small 9-ball DSBGA (1.2 mm × 1.2 mm) package.
Whether you're designing mobile phones, tablets, or embedded systems, the TS3A226AEYFFR delivers reliable, software-free headset detection with low power consumption and excellent audio quality.
Let’s take a closer look at what makes this part a wise choice for next-gen audio interface designs.
Autonomous Accessory Detection
Automatically detects 3-pole and 4-pole 3.5 mm headset types, including microphone position, without any software control.
Low On-Resistance Ground FETs (60 mΩ typ)
Ensures minimal signal distortion and excellent audio crosstalk performance.
FM Signal Support
Allows headset ground to act as an FM antenna, enabling radio functionality without additional components.
Pop/Click Noise Reduction
Engineered to minimise audible transients during insertion/removal of audio jacks.
Ultra-Low Quiescent Current (6.5 µA typ)
Ideal for battery-powered mobile applications that require efficient power consumption.
Wide Supply Range (2.6 V to 4.7 V)
Compatible with a variety of mobile and portable designs.
Tiny 9-Ball DSBGA Package (1.2 mm × 1.2 mm)
Space-saving layout for high-density PCBs and compact audio device footprints.
RoHS-Compliant & ESD Protected
±8 kV contact discharge protection on key pins (IEC 61000-4-2) ensures durability and compliance.
Applications of the TS3A226AEYFFR
The TS3A226AEYFFR is purpose-built for audio accessory routing in:
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