Scrollwheel input device is 'industry's thinnest'

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Avago Technologies is introducing a new series of ultra-slim scrollwheel input devices that are easy to install and available in 12 standard configurations to meet the aesthetic design needs of designers developing portable handheld applications in low volumes. Avago's AMRX-1510 scrollwheel device provides for easy scrolling, directional navigation, and pushbutton selection in what is claimed to be the industry's thinnest package with dimensions of 1.9mm height by 18.5mm in diameter.

The AMRX-1510 combines an illuminated scrollwheel input device with tactile left, right, up and down navigation switches and a centre 'select' button instead of many different rocker switches to enhance the user experience. In addition, with the availability of either a blue or white illumination ring, as well as a variety of material, colour and finish options for the centre select button and scrollwheel, designers can easily enhance the overall look and feel of their products to create more value to the end user. Moreover, the new design options available in the AMRX-1510 minimise the additional cost of customisation for low-volume applications, making this input device more affordable.

Based on the same innovative reflective optical technology (patents pending) as used in the AMRX-1500 to detect the direction and speed of the rotational movement of the rotary dial, this new input device also incorporates a non-contact motion sensor to ensure reliable operation. Avago's AMRX-1510 comes with an FPC interconnect terminated in standard surface-mount zero insertion force (ZIF) connectors to enable designers to easily install the device in their applications.

Today's users are often faced with difficulties in navigating long play lists or menus, and changing settings and values with the conventional rocker switches used in today's mobile phones, music players and many other devices. With the ease of variable speed control, Avago's AMRX-1510 is an excellent replacement for those switches, and its integrated illumination ring enable designers to easily develop handheld electronic products that are more visually attractive.

Technical specification

The Avago AMRX-1510 scrollwheel device is built around Avago's reliable reflective optical technology. The horizontal scrollwheel provides a two-channel quadrature output, with resolution of 45 cycles per revolution (CPR). It operates from a single 2.4-3.3 V supply and is available in both single-ended 1.8V CMOS and 3.3V TTL logic-compatible output options. It is easy to assemble, featuring plug-and-play connectivity through a flexible printed-circuit board, and requiring no signal adjustment. To maximise battery life, the device features a power-down mode in which it draws only 4uA. The Avago AMRX-1510 is RoHS-compliant and lead-free.

Samples and production quantities are available now through Avago's direct sales channel and worldwide distribution partners.

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