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Technical content

Features

VDD 2.5 to 4.4V VIO 1.6 to VDD THD (MIC) 0.01% Typical ESD (Air Gap) 15kV Operating Temperature -40°C to 85°C Package 10-Lead UMLP 1.4x1.8x0.5mm, 0.4mm Pitch Top Mark FSA8008 KC FSA8008A KD FSA8008AUMX

Applications

 3.5mm and 2.5mm Audio Jacks  Cellular Phones, Smartphones  MP3 and PMP

Description

The FSA8008/FSA8008A is an audio jack detector and switch for 3- or 4-pole accessories. In addition to detection, the FSA8008/FSA8008A features an integrated MIC switch that allows the processor to configure the audio jack. The architecture is designed to allow common third-party headphones to be used for listening to music from mobile handsets, personal media play ers, and portable peripheral devices.  Determines 3- or 4-Pole Audio Jacks  Removes Audio Jack Pop-n-Click Caused by MIC Bias  Detects Audio Jack Accessories: - Standard Headphones - Headsets with MIC - Send / End Button Presses  Integrates a MIC Switch for 4-Pole Configuration Related Resources  FSA8008/FSA8008A Demonstration Board  For samples and questions, please contact: Analog.Switch@fairchildsemi.com. Typical Application Figure 1. Mobile Phone Example

© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA8008 / FSA8008A • Rev. 1.0.3 FSA8008 / FSA8008A – Audio Jack Detection and Configuration Switch Physical Dimensions Figure 4. 10-Lead UMLP Package Drawing

Ordering Information

Part Number Operating Temperature Range Top Mark Package FSA8008UMX -40 to +85°C KD 10-Lead 1.4 x 1.8 x 0.55mm, 0.4mm pitch Ultrathin Molded Leadless Package (UMLP) FSA8008AUMX KC A. DIMENSIONS ARE IN MILLIMETERS. B. DIMENSIONS AND TOLERANCES PER ASME Y14.5M, 1994 TOP VIEW BOTTOM VIEW RECOMMENDED LAND PATTERN 0.15 C 0.08 C B A C 0.15 C SIDE VIEW SEATING PLANE 0.10 C 0.050

0.10 CAB

0.05 C 0.55 MAX. PIN #1 QUADRANT 1.40 1.80 0.40 0.15 0.25 10X 0.45 0.55 0.35 0.459X 1.700 2.100 0.400 0.663 0.563 0.225 10X 0.152 0.100 0.100 0.500 0.100 DETAIL A PIN #1 TERMINAL SCALE: 2X 1.850 1.450 0.550 0.400 0.225 10X 0.450 OPTIONAL MINIMIAL TOE LAND PATTERN C. DRAWING FILENAME: UMLP10Arev2

© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA8008 / FSA8008A • Rev. 1.0.3 FSA8008 / FSA8008A – Audio Jack Detection and Configuration Switch