Is Now Part of To learn more about ON Semiconductor, please visit our website at www.onsemi.com Please note: As part of the Fairchild Semiconductor integration, some of the Fairchild orderable part numbers will need to change in order to meet ON Semiconductors system requirements. Since the ON Semiconductor product management systems do not have the ability to manage part nomenclature that utilizes an underscore ( ), the underscore ( ) in the Fairchild part numbers will be changed to a dash (-). This document may contain device numbers with an underscore ( ). Please check the ON Semiconductor website to verify the updated device numbers. The most current and up-to-date ordering information can be found at www.onsemi.com. Please email any questions regarding the system integration to Fairchild questions onsemi.com. ON Semiconductor and the ON Semiconductor logo are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductors product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. Typical parameters which may be provided in ON Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including Typicals must be validated for each customer application by customers technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.FSA8058 Audio Jack Detection and Configuration Switch with Moisture Sensing July 2013 FSA8058 Audio Jack Detection and Configuration Switch with Moisture Sensing Description Features The FSA8058 is an audio jack detection switch for Accessory Plug-In 3-pole and 4-pole accessories. The FSA8058 features 3-Pole or 4-Pole Audio Jack moisture sensing, which prevents false positive Detection Send/End Key Pressed detection of accessories in the audio jack. The FSA8058 Moisture also features an integrated MIC switch that allows a Switch Type MIC processor to configure attached accessories. The architecture is designed to allow common third-party V 2.5 V to 4.5 V DD headphones to be used for listening to music from V 1.6 to V IO DD mobile handsets, personal media players, and portable peripheral devices. THD (MIC) 0.01% Typical ESD (Air Gap) 15 kV Prevents False Detection of Accessories in the Audio Jack when Moisture is Present Operating -40C to 85C Removes Audio Jack Pop and Click Caused by Temperature MIC Bias 10-Lead UMLP, 1.4 mm Package Detects Audio Jack Accessories: 1.8 mm 0.5 mm, 0.4 mm Pitch - Standard Headphones Top Mark FSA8058 NC - Send / End Button Presses Ordering Information FSA8058UMX Integrates a MIC Switch for 4-Pole Configuration Applications Related Resources 3.5 mm and 2.5 mm Audio Jacks FSA8058 Evaluation Board Cellular Phones, Smart Phones For samples and questions, please contact: Analog.Switch fairchildsemi.com MP3 and PMP GPIO Interface FSA8058 Jack Detect Baseband Insert and Moisture Logic Audio Jack Detection Key Detection CODEC MIC MIC- Send/End Key Figure 1. System Diagram 2012 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA8058 Rev. 1.0.0