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Product category: EMC Components
News Release from: TTI Europe | Subject: DLPONS
Edited by the Electronicstalk Editorial Team on 08 August 2005

Common-mode choke shrinks to chip scale

The DLPONS is billed as the world's smallest common-mode choke coil for high-speed differential transmission line noise suppression.

Available now from TTI Europe, the DLPONS is billed as the world's smallest common-mode choke coil for high-speed differential transmission line noise suppression Manufactured by Murata, this product is smaller, thinner and lighter than its predecessor at 0.85 x 0.65 x 0.45mm, greatly contributing to high-density mounting for compact mobile equipment such as cellular phones and digital cameras

A coupling coefficient of over 0.98 has been realised to suppress differential mode impedance for the signal passage band causing degradation in signal waveforms, to a low level.

Furthermore, alignment against characteristic impedance of the transmission line suppresses input signal reflection, enabling the removal of common mode noise alone without affecting high-speed signal waveforms.

Three items with common mode impedance of 67, 90 and 120ohm (typical value at 100MHz) are available in the lineup to allow for a wide range of selections according to applications.

The DLPONS series is fully compliant with the forthcoming RoHS regulation and suitable for use in applications such as noise suppression at high-speed differential transmission lines (USB2.0, IEEE1394, LVDS, DVI, HDMI etc) for compact mobile equipment including digital stills cameras, video cameras, cellular phones, PDAs and laptop PCs. Request a free brochure from TTI Europe ...

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