Audio jack detection switch meets OMTP,CTIA standards

Audio jack detection switch meets OMTP,CTIA standards

The FSA8049 audio detection switch complies with two audio configuration jack standards the OMTP and CTIA. The device detects the locations of the ground (GND) and microphone (MIC) poles on the audio plug and automatically routes them to the appropriate connections allowing the end-user to plug accessories, such as headsets, with different audio pole configurations into the device and have them operate correctly.

The switch can detect 3- or 4-pole audio accessories. It also can detect polarity of GND and MIC on 4-pole plugs. Additional features include a VDD from 2.5 to 4.4 V, a THD(MIC) of 0.002% typical, and an ESD (IEC61000-4-2) air gap of 15 kV. Housed in a 9-ball WLCSP 3×3 array, the part operates from 40° to 85°C.($0.36 ea/1,000 8-12 weeks ARO)

By Christina Nickolas

Fairchild Semiconductor , South Portland , ME , United States
Sales 207-775-8100
www.fairchildsemi.com