World's First* Noise Countermeasure Products for Terrestrial Digital Broadcast Compatible Cell Phones

ASIA Japan : TDK Corp announced it has developed the MEA2010PE series of multilayer chip EMI filter arrays, the world's first noise countermeasure products for use in mobile terminals that can receive terrestrial digital broadcasts.

Inset shows the MEA2010PE series of multilayer EMI filter arrays. Production of the new filter arrays is scheduled to begin this month.

Terrestrial digital television broadcasts for mobile terminals (one segment broadcasts) are scheduled to begin in Japan in April 2006. Terrestrial digital broadcasts are also progressing in Europe and other regions. In conjunction with these developments, development and use of television tuners designed specifically for cell phones and notebook PCs is increasing rapidly. When such tuners are used in cell phones, in addition to the communications band (800MHz - 2GHz), a broadcast band (470 MHz - 770 MHz) is also utilized, and as a result, noise countermeasures are crucial in device design and miniaturization. TDK's new filter arrays respond to these market developments, providing cutting-edge noise countermeasures with a focus on terrestrial digital broadcasts and a compact package just 2.0 mm × 1.0 mm × 0.7 mm in size.

Because video data is the core component of terrestrial digital broadcasts, it is essential to reduce noise in the 470 MHz - 770 MHz band while minimizing any deterioration of the circuit waveform quality. The new array filters use optimal materials and pattern designs in the pursuit of exceptional noise countermeasures for terrestrial digital broadcasts. The four product lineup can be used in terrestrial digital broadcast tuners and as an effective noise countermeasure in a variety of applications that use the 470 MHz to 2 GHz band.

* As of December 12, 2005 according to TDK investigation.

Main Features
Effective noise countermeasures of the wide band from 470 MHz to 2 GHz (suitable for noise countermeasures in the bands used for terrestrial digital broadcasts and cell phones).

More than 30 dB attenuation in the bandwidth from 470 MHz to 2 GHz (by the MEA2010PE360T001).

Array includes four p-shaped filters in a thin, compact package (2.0 mm × 1.0 mm × 0.7 mm) suitable for use in cell phones.

Four product lineup with different capacitances for optimal effects depending on the circuit (15 pF, 22 pF, 36 pF, and 40 pF).

Lead-free, compatible with lead-free solder, conforming to RoHS Directive.

Production and Sales Plan
Sample price: 30 yen per unit for all products
Production base: TDK Ugo Corporation
Production capacity: 20 million units/month
Start of production: December 2005

Explanation of Terminology
** EMI: Electromagnetic Interference. EMI countermeasures refer to measures taken to prevent electronic devices themselves from generating harmful electromagnetic noise. There are also electromagnetic susceptibility (EMS) countermeasures to prevent detrimental effects to electronic devices when they are exposed to noise. Together, EMI and EMS countermeasures are referred to as electromagnetic compatibility (EMC) measures.

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