DESCRIPTION
The EClampTM2394P is a (L-C) low pass filter array with integrated TVS diodes. It is designed to suppress unwanted EMI/RFI signals and provide electrostatic discharge (ESD) protection in portable electronic equipment. This state-of-the-art device utilizes solidstate silicon-avalanche technology for superior clamping performance and DC electrical characteristics. They have been optimized for protection of color LCD and camera lines in cellular phones and other portable electronics. The device consists of four identical circuits comprised of TVS diodes for ESD protection, and a 5-pole inductor - capacitor network for EMI/RFI filtering. A typical inductor value of 19nH and a capacitor value of 12pF are used to achieve 30dB minimum attenuation from 800MHz to 2.7GHz. The TVS diodes provide effective suppression of ESD voltages in excess of ±15kV (air discharge) and ±8kV (contact discharge) per IEC 61000-4-2, level 4. It measures 2.1 x 1.6 x 0.58mm. The small package makes it ideal for use in portable electronics such as cell phones, digital still cameras, and PDAs.
Semtech Corporation
