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Crystal selection guide

Posted: 11 Aug 2011     Print Version  Bookmark and Share

Keywords:RF systems  clocks  low power RF  crystal 

RF systems are highly dependent on accurate clocks for correct operation. A deviation in clock frequency is directly reflected as a deviation in radio frequency. This can degrade RF performance, violate legal requirements or in worst case lead to a non-functioning system.

The scope of this application note is to give the design engineer a quick guide on how to design, tune and verify the clock circuit for Texas Instruments low power RF products. A list of suggested crystals which can be used with CC253x and CC2540 is presented. The designer must pick a crystal which satisfies his/hers requirements on size, tolerance and temperature range. If other crystals are to be used, fundamental mode, AT cut crystals is highly recommended due to accuracy and ease of use.

View the PDF document for more information.

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