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LTC1348CG

LTC1348CG资料
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File Size : 116 KB Manufacturer:LINEAR Description:The VCXO provides a tunable, low-jitter frequency refer- ence for the rest of the FS6011 system components. Loading capacitance for the crystal is internal to the FS6011. No external components (other than the reso- nator itself) are required for operation of the VCXO. The resonator loading capacitance is adjustable under register control. This permits factory coarse tuning of in- expensive resonators to the necessary precision for digi- tal video applications. Refer to Section 4.6. Continuous fine-tuning of the VCXO frequency is accom- plished by varying the voltage on the XTUNE pin. The total change (from one extreme to the other) in effective loading capacitance is 1.5pF nominal. The oscillator operates the crystal resonator in the paral- lel-resonant mode. Crystal warping, or the pulling of the crystal oscillation frequency, is accomplished by altering the effective load capacitance presented to the crystal by the oscillator circuit. The actual amount that changing the load capacitance alters the oscillator frequency will be dependent on the characteristics of the crystal as well as the oscillator circuit itself. Specifically, the motional capacitance of the crystal (usu- ally referred to by crystal manufacturers as C1), the static capacitance of the crystal (C0), and the load capacitance (CL) of the oscillator determine the warping capability of the crystal in the oscillator circuit. A simple formula to obtain the warping capability of a crystal oscillator is:


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	1PCS	100PCS	1K	10K
价格


型号：LTC1348CG 厂家：LINEAR 封装：SMD 批号：434 数量：126 说明：QQ：104735486 611606076


运费：运费到付10.00元（快递）20.00元（顺风）所在地：深圳新旧程度：