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ANALOG BEHAVIORAL MODELING WITH THE VERILOG-A LANGUAGE- P9

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ANALOG BEHAVIORAL MODELING WITH THE VERILOG-A LANGUAGE- P9: Verilog-A is a new hardware design language (HDL) for analog circuit and systems design. Since the mid-eighties, Verilog HDL has been used extensively in the design and verification of digital systems. However, there have been no analogous high-level languages available for analog and mixed-signal circuits and systems. | Using the Explorer IDE After a plot has been selected you can change its properties via the Plot Properties dialog accessible from the right-mouse button within the plot window. The Plot Properties dialog allows you to set generic axis and signal attributes. Generic plot attributes include the plot type as well as display of titles and or subtitles. Axis properties of the plot allow you to set the axis styles for both the X- and Y-axis including labels and tic-mark styles. Verilog-A Explorer IDE 197 Verilog-A Explorer IDE Signal properties allow you to edit the description of the signals displayed in the legend box as well as the data format and drawing attributes. D.3.2 Creating a New Designs Starting a new design follows essentially the same procedure as previously outlined but with the addition to creating a new circuit and or Verilog-A file s . From the main Explorer menu select File- New which raises the following dialog box If you select a circuit file the workspace will be cleared of any open files. If you select a Verilog-A file it is assumed that it is associated with any existing circuit design open within the workspace. In both cases a new file is created and initialized with a template file of the appropriate type. If you prefer your own template files change the path of the template via the respective Editor Properties dialog accessible via the right mouse button. 198 Verilog-A HDL Appendix E Spice Quick Reference E.1 Introduction Spice is a general-purpose circuit simulation program for nonlinear DC nonlinear transient and linear AC analysis. Originating from the University of California at Berkeley is by far the best known and most widely used circuit simulator. It is available in for a wide variety of computer platforms in both commercial and proprietary derivatives of the original version. Newer versions of Spice offer many extensions but the input format for circuit descriptions reflect the original batch-oriented program architecture. This .