Employing the ADIsimPLL design and simulation tool, it is claimed that users can observe detailed performance data for a PLL design, make changes to the design, and re-simulate it based on the new data within several minutes. According to the company, traditional simulation and testing of PLL circuit parameters, such as phase noise, spurious signal performance, and lock time could only be achieved by building and characterizing a prototype circuit and then adjusting the component values until the desired performance was reached. Essentially a manual process, this approach could often take several days to implement changes and make measurements.The ADIsimPLL design and simulation tool promises rapid and reliable evaluation of PLL performance parameters by allowing users to quickly change the PLL circuit design and then observe immediate performance changes. The software can be downloaded at no charge from the companyÕs website or on a CD-ROM from the companyÕs sales office. For further information on obtaining a CD-ROM, call ANALOG DEVICES, INC., Norwood, MA. (800) 262-5643.
Company: ANALOG DEVICES INC.
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