ECLAMP3202A (SEMTECH)

The ECLAMP3202A is an ESD/EMI Protection Device for microphone ports. It is a low pass filter array with integrated TVS diodes for ESD protection. It is designed to provide bidirectional filtering of EMI/RFI signals and electrostatic discharge (ESD) protection in portable electronic equipment. This state-of-the-art device utilizes solid-state silicon-avalanche technology for superior clamping performance and DC electrical characteristics. It has been optimized for use on a microphone port in cellular phones and other portable electronics. The device effectively replaces 10 discrete components to provide ESD protection and EMI filtering. Each device requires less than 2.9mm? of PCB area with a low profile of only 0.6mm. This small package will protect and filter up to two lines. The TVS diode is bidirectional for supporting bipolar audio signals without distortion. The device has very low insertion loss in the pass band and high attenuation at frequencies ranging from 800MHz to 3GHz.