Available to designers at no charge, the ADIsimDDS tool assists you in selecting, evaluating, and troubleshooting direct digital synthesis (DDS) ICs from Analog Devices. Using parametric data to mathematically model the general behavior of a selected DDS IC, it enables you to enter the desired operating conditions, evaluate the quality of the circuit’s sine wave, and view the resulting harmonic images. The tool doesn’t require a software download. Real-time access is available at www.analog.com/ADIsimDDS.

The ADIsimDDS tool enables you to choose a DDS IC and set general parameters, such as the desired reference clock frequency, output frequency, and the required number of reference clock multipliers. By observing the behavior of the DDS IC within these parameters, you get a real-time representation of the circuit’s harmonic images and sine wave quality. To assist you with choosing a filter, the tool is especially effective for frequency planning, which helps minimize the complexity of the filter’s design.

If you aren’t familiar with DDS ICs, you will benefit from the tool’s ability to troubleshoot potential problems. For example, interactive message flags issue a series of warnings if a circuit configuration may lead to operational issues or if the circuit will degrade the system’s overall performance. This feature helps ensure that each circuit meets performance characteristics, greatly reducing the possibility of costly, time-consuming circuit redesigns.

Analog Devices, Inc.
www.analog.com