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Audio circuity has become quite ubiquitous in modern technology. The field of A/V engineering has expanded beyond the traditional home and car stereo systems to compact stereo units, phones, Smart speakers, and even PCs. It is easy enough to simulate audio circuitry with a simple sine or square wave source, however, this rarely paints a qualitative picture of how the circuit will perform in the real world. New in PSpice 23.1 is the ability to use a .Wav file in PSpice to increase accuracy in your circuit analysis with import and export capabilities.This quick how-to will provide step-by-step instructions on how to use a .WAV file in PSpice Designer.To follow along, download the provided files above the table of contents.How-To VideoOpen in New WindowPlace the WAV SourceStep 1: Open the provided design in PSpice Designer.Placing Components in PSpiceStep 2: Select Place > Component from the menu. The Component Explorer tab opens.Step 3: In the Categories list, expand PSpice > Source > Independent Sources and select Voltage Source.Step 4: Select WAVESRC. Right-click and select Place.Placing a WAV Source in PSpiceStep 5: Click to place the WAV source on the input net. Right-click and select End Mode.Load the WAV FileStep 6: Before the WAV source will generate any useful data, a WAV file must be loaded. Double-click the WAVEFILE field to define the file.Defining a File Name in OrCAD PSpiceStep 7: Enter ..\..\..\Upbeat.wav into the Value field and click OK to link to the provided file.Note: ..\ will tell the program to look for the file one folder up. For this example, the WAV file is located in the PSpice simulation folder three levels up. The exact file path to the .wav file can also be entered into this field.Create the SimulationStep 8: Select PSpice > New Simulation Profile from the menu.Step 9: Name the simulation profile Amp_Trans and click Create.Note: If the Simulation Manager Product Choices window opens, select the appropriate license and click OK.Configuring Simulation Settings in PSpiceStep 10: Set the Run To Time to 9 for a runtime of 9 seconds.Note: The provided WAV file is 9 seconds long. In your own designs, adjust this value to be the length of the WAV file you are using. Longer files will use more memory.Step 11: Click OK to save the settings and close the window.Step 12: Select the Voltage/Level Marker button from the toolbar.Placing Probes in PSpiceStep 13: Click to place probes at the IN and OUT nets. Right-click and select End Mode.Use a .WAV File in PSpice for SimulationStep 14: Select PSpice > Run from the menu to start the simulation.Note: The simulation will take some time to run due to the relatively large file.Step 15: A Large Data

File warning appears. Select Ignore this Warning and click OK to ignore the warning and show the results.Step 16: View the simulation results. V(IN) shows an audio signal and V(OUT) shows an amplified version of the signal.Generating a .WAV FileNote: In addition to importing an external audio file, PSpice can save a processed audio file, for example, to simulate an audio processing circuit.Step 17: Close the PSpice A/D window.Step 18: Back in the schematic canvas, select Place > Text from the menu.Defining a Text Command in OrCAD PSpiceStep 19: Enter the following text into the Place Text window.@PSpice:.WAVE "..\..\..\Upbeat_Amplified.wav" 32 44100 V(OUT)Note: Use CTRL-Enter on the keyboard to start a new line. The following syntax should be used to define the .wave file exported:.WAVE bit-depth sample-rate Where:bit-depth is the resolution of sound.sample rate is the sample per second.list of nodes defines the number of channels in the output.The expression in this example will generate a WAV file sampled at 44.1kHz (CD quality) with 32 bits per channel.Placing Text in the Schematic CanvasStep 20: Click OK and click to place the text in the schematic canvas. Right-click and select End Mode.Step 21: Select PSpice > Run from the menu to start the simulation.Step 22: In the Large Data File window, select Ignore this Warning and click OK. The audio waveforms appear as before.Step 23: Browse to the working directory. “UPBEAT_AMPLIFIED.WAV” is shown in File Explorer.Step 24: Open the audio file in your preferred media player. Some bass boost has been added to the audio.Wrap Up & Next StepsEfficiently use .WAV files in PSpice to increase the accuracy of your audio circuitry simulations. Upgrade to the latest 23.1 release or test out this feature and more with a free trial of OrCAD.

Other Parts Discussed in Thread: CSD13303W1015, CSD22202W15I would like to import the PSPICE model of the MOSFET CSD13303W1015 into Cadence Spectre Simulator. However, the model file is likely encrypted for the use of Orcad only so that Cadence Spectre can not decode the model file. Please advise what I could do to make it work? Bai,You are correct. All of the NexFET models are encrypted and cannot be used in any simulator other than PSpice version 15.7 or higher. These models require an NDA to be provided in an unencrypted format. If you have a direct TI support contact, please contact them and they can make the request for you. If you do not have a direct TI support person, you can make the request through the TI Customer support website: your region and fill out the information requested. Once an NDA is in place, we can provide the unencrypted model.Britt Hi Britt,I have made a request to TI support center as you suggested. I hope it would work out.Apart form this, I am also looking for the model of CSD22202W15 but it is not available on TI website.Please advise where else I could find it?Thanks.Regards,Bai N. Nguyen

Shipped with) causing it to reboot upon sound play if they used passive speakers and turned the mixer volume up too loud. -- View image here: -- will boot a CF card in a PCMCIA slot too! I abandoned that project, though, since with only 16MB RAM (that's maxed out), I'd really need swap space, and swapping to flash is not a good idea. Still makes a good firewall running OpenBSD, which it's been doing for almost five years (the first two or three being Debian though). Add bookmark #36 Yeah, a PCChips (I think) or Chips and Technologies maybe? 80387 was the first chip I ever fried. I bought it and was installing it. I put the chip on the socket triple checked to make sure it was facing the right way, picked it up for some reason, then rotated it by 90 degrees and inserted it. It got real hot. I then bought a replacement Cyrix and installed it correctly. It made some difference running PSpice. On the 8088 (original PC no less... not even an XT) we'd run PSpice overnight on some problems and sometimes it'd crash during the night. On a 286 without a 287, some problems took a while. Installed the 287 and it was a whole different machine. By the time the 386s were out, the problems we worked in school on PSpice weren't that bad so the 387, while speeding it up, basically cut it down to like a second instead of 10 seconds or something. CDG Ars Tribunus Militum Add bookmark #37 I remember reading an article (now be patient since I was rather young) about a company converting your 386 to a 486. Now 386s were mostly if not all soldered down to the mobo, so this company was soldering a 486 over top of the existing 386. I wonder if that would be possilbe on my other old Toshiba laptop- its got a 486 in it, but if I soldered a better/faster/aditional one over top of it, what would it do? Could I be doing a sort of dual core processor? Add bookmark #38 quote:Man, back in those days simple upgrades made such a difference...these days there is nothing like that. I disagree. The difference in time between the introduction of 2400 baud modems and 33.6k was vast -- longer than the time between the respective heydays of the S3 Virge and the 6600GT, yet the difference in performance between the latter is far greater, and I suspect the upgrade would cost less. 486SX -> P150 Overdrive was a shorter time period with less potential incompatibility, but it was also a lot less dramatic than even the modem upgrade (25MHz

SPICE Simulation with CadenceCadence understands that SPICE simulation is crucial to the overall EDA workflow. It is impossible to build modern circuits without extensive use of simulation and verification technologies.PSpice — PSpice is the gold standard for design analysis. With defining features such as component tolerance analysis, manufacturability, sensitivity, and even advanced systems simulation links with MATLAB, PSpice can provide precisely what you need to determine where your design should go next. Furthermore, with a 35,000-model library growing by the month, you can stop wasting time building out known components and get right into the applications and dynamics that make engineering interesting.Cadence Spectre Simulation platform offers a seamless accuracy-performance continuum from block-level simulation through chip-level verification. As the industry’s leading solution for accurate analog simulation, the Cadence Spectre Simulation Platform provides a comprehensive portfolio of custom simulation solutions for analog and mixed-signal design and verification teams. The infrastructure foundation of the platform is a unified set of technologies shared by all SPICE engines—the parser, device models, Verilog-A behavioral modeling, input data formats, output data formats, etc.—thereby guaranteeing consistent and accurate evaluation methods regardless of the simulator selected.Cadence FastSPICE circuit simulator is set to revolutionize memory and large-scale System-on-Chip (SoC) design verification, offering unparalleled efficiency and precision. With its cutting-edge, scalable architecture, Spectre FX promises to deliver up to three times the performance of competing FastSPICE simulators, without sacrificing accuracy. This enhancement strengthens the Spectre simulation platform's comprehensive leadership in the industry, providing a full suite of verification tools for analog, RF, mixed-signal, memory, and SoC designs.Cadence Virtuoso ADE Suite — Cadence Virtuoso ADE suite provides design analysis and verification tools for running 10 to 10,000 simulations. It provides increased simulation throughput to help you complete the verification process faster.Learn how Cadence can help you with your SPICE simulation needs today.

Part Number: DAC0800 Other Parts Discussed in Thread: TINA-TI, , DAC8820Tool/software: TINA-TI or Spice ModelsI need to simulate a circuit in spice which contains the DAC08 at the centre of it. It is a legacy circuit - I am not looking to use the latest components rather the ones that exist in the circuit already. I really need a spice model for the DAC08, DAC0800 or an equivalent IC recommendation that matches these as closely as possible Dominic,Unfortunately SPICE models for DACs, and data-converters at large, historically haven't been as wide-spread as those of operational amplifiers and other components. There's been some investment here and there from TI and others for DAC SPICE models, but at present we only have what is posted here: www.ti.com/.../spice-models.htmlWe are working on a new DAC SPICE macro-model, but it is not ready at this time.What specifically are you investigating which requires a SPICE model? Perhaps we can find other means to assist you. Hi Dominic,Welcome to E2E and thank you for your query. You can look at the Tina model of DAC8820. This is the closest available match.Hope that answers your question.Regards,Uttam SahuApplications Engineer, Precision DACs Im trying to import the DAC8820 PSpice library file to see if it will be sufficient but I am just getting an empty library whenever I try the normal .olb generation process normally used to import these files. I can import the .lib file into the pspice simulation configuration folder but currently I cannot get a component symbol or orcad to recognize the olb. I can see the model is encrypted but I assume I should still be able to import the library. Thanks I can now simulate using the DAC8820 model