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Task Description
Now that you know how to create circuit schematics using EAGLE, try your skills on the "Mint Tin Amplifier" circuit. You need to download a couple of new parts libraries, then you will recreate the circuit schematic in EAGLE. Next class (November 18) you will turn in...
- Your properly labeled circuit schematic, printed from EAGLE (color printout preferred)
- A bill of materials generated and printed from EAGLE (click here for instructions.).
- Print these items at home--don't rely on university printers/networks!!
Follow these steps before you get started...
- Before you begin, download two new libraries to your computer (and the E321 computer lab computer). Carefully follow the instructions below... caution...the instructions below are for Internet Explorer & Windows XP...the steps will vary if you are using Firefox or a Mac or Vista!
- Right mouse click on each of the these links: rhine-misc.txt and project-box.txt
- Select Save Target As...
- Select the correct destination folder in the Save In box--the correct folder is C:\Program Files\EAGLE-5.3.0\lbr
- Change File Name: to rhine-misc.lbr or to project-box.lbr (note the change in the file extension to "lbr" !!!)
- Change the Save as type box to read All Files
- Then click the Save button
- Now open up EAGLE to verify that the libraries are there...
- In the EAGLE Control Panel, double left mouse click to view all of the libraries
- Scroll down to the list of libraries to locate the new libraries you just added
- When you find the library, make sure the the "dot" to the right of the library name is GREEN. If it isn't green, right-click on the library name, then click on the Use menu item.
Here's the Mint Tin Schematic (pdf file) and a Few Hints!
- Here is the circuit diagram you need to recreate in EAGLE for homework
- Here is the list of parts and the associated EAGLE libraries.
- Although the schematic appears to be three separate pieces, they are all actually part of the same circuit, so create ALL THREE IN THE SAME EAGLE SCHEMATIC!!! In the background, EAGLE will automatically connect all of the supply lines from the supply2.lbr (including ground (PE), +9V, and -9V). For example, the +9V supply symbol on the power supply section will automatically connect to the +9V on the two op amps (IC1A and IC1B). In fact, after everything is wired, you can use the show tool (the eyeball) to click on the ground wire in the power supply, and you should see the ground wires in the left and right amplifier section turn bright green as well, even though you don't see a physical wire (it is a "logical" connection).
- Take care when you add the Burr-Brown op amp to your schematic (the triangular circuit symbol). The DIL08 package contains TWO of these devices, so you need to add TWICE, and they should be named IC1A and IC1B. If an IC2A or IC2B comes up, delete all your op amps and try again! Note that the second op-amp symbol does not have any leads for power connections--EAGLE will automatically connect these to the +9V and -9V from IC1A for you!
- Take care when you add the Panasonic EVJC20 dual potentiometer. You only need to add one to your schematic, and two will appear.
- Take care when connecting the stereo audio jack--look at an actual jack from a set of headphones, and look at the diagram in the lower left corner of the page to help see the connections in the schematic.
- Make sure to check all of your wiring to ensure all connections are made (use the "show" tool--the icon looks like an eyeball in the upper left corner of the schematic window). When you click on the wire, it will turn bright green , and will show connections to device pins in bright red.
Go back to the TEAMS EAGLE Home Page or to the 16.100 Intro to ECE EAGLE Home Page
