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Anadigm answers requests for drag-and-drop solution

Posted: 06 Oct 2004 ?? ?Print Version ?Bookmark and Share

Keywords:anadigm? programmable analog building block? configurable analog module? cam? field programmable analog array?

Designers can now point and click to create square wave oscillators, a voltage-controlled sample and hold circuit, and a sum/difference stage with biquadratic filter, Anadigm said. Originally developed by the company for customer-specific designs, these are among a new group of programmable analog building blocks now available for free download from Anadigm's website.

Each of the Configurable Analog Modules (CAMs) in this new "Customer Collection" can be downloaded to an Anadigm Field Programmable Analog Array (FPAA) to implement a software-controlled function in an analog equivalent to the FPGA.

Compared with the standard CAMs provided with the AnadigmDesigner2 EDA tool used for programming FPAAs, the new Customer Collection CAMs implement more complex, application-specific functions and are the result of customer requests for a drag-and-drop solution to specific design challenges, the company shared.

The first Customer Collection CAMs being made available include a sawtooth and square wave oscillator, a triangle and square wave oscillator, a sum/difference stage with biquadratic filter, a multiplier with low corner frequency LPF, and a voltage-controlled sample and hold.

Each of the new CAMs features one or more user-selectable parameters. For example, the sawtooth and square wave oscillator allows users to set the frequency, duty cycle and peak level; the sum/difference stage with biquadratic filter allows users to choose from low pass, high pass or band pass filter configurations; and the voltage-controlled sample and hold provides users with the ability to select a comparison value for the control signal.

Drag and drop

To implement the functions abstracted in the CAMs, users simply drag and drop the CAM into the graphic representation of the FPAA in AnadigmDesigner2. Once the parameters are selected, the circuit is ready to be downloaded to the FPAA for testing and validation.

Anadigm is making available the Customer Collection of CAMs with the recommendation that performance expectations and appropriate applications be discussed with their technical support before use. Designers are advised to bench-test circuits constructed with these CAMs to verify that the desired functionality is being achieved.

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