Designers face the challenge of two main audio configuration jack standards, namely Open Mobile Terminal Platform (OMTP) L / R / M / G for 3.5mm audio jack, and CTIA L / R The / G / M jack pin corresponds to the standard. Because the jack pins correspond differently, designers can only choose to support one of these standards, or use more complex designs with more components to support both standards.
To meet this challenge, Fairchild Semiconductor has introduced the FSA8049 MIC / GND crosspoint switch that meets two audio configuration jack standards. This device is a new member of Fairchild Semiconductor's high-performance analog mobile audio device family. It can detect the ground (GND) and microphone (MIC) electrode positions on the audio plug and automatically complete the corresponding connection. This will allow end users to connect different audio The earphone with the electrode configuration is inserted into the device to make it work normally.
Features and benefits
· Able to detect two different audio jack configurations and connect them correctly according to each standard, you can use all existing headphones in the new device without manual configuration
· Automatically connect GND and MIC electrodes with audio jack terminals
· Able to detect 3-pole or 4-pole audio accessories
· Small footprint 9 bump WLCSP 3x3 array package, saving circuit board space
· Suitable for mobile phones, smartphones, tablets and laptops
Fairchild Semiconductor can identify market trends and develop solutions that meet these needs, allowing engineers to differentiate their designs. FSA8049 leverages Fairchild ’s proprietary technology in developing solutions to enhance mobile product design and enrich the end user experience.
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