Ceramic resonators for USB 2.0
14 May 2008
Electronics Technology
Murata has developed a series of ceramic resonators with built-in load capacitors to reduce component count and save space in USB 2.0 controller IC driver circuits. The new CSTCE-XT series in Murata's Ceralock family of ceramic resonators measures just 3,2 x 1,3 x 1,0 mm and is suitable for mobile phones, digital cameras, printers, keyboards and other consumer electronics and audio equipment applications.
The new resonators realise very high accuracy with an initial tolerance of ±250 ppm, and a temperature characteristic of just ±150 ppm, making them suitable for replacing quartz devices in many applications. They also benefit from quicker start up times and better shock resistance than their quartz counterparts.
This series is available in the frequency range 24 to 27,2/30 MHz and operating temperatures are 0 to 70°C.
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