I'm a complete new Multisim user and have to make my first electrical scheme within a week for school (self study). Now, the component we mainly use (other than resistors and capacitators) are the dg403 analog switches. I've looked on the internet but didn't find anything to download it as a part of the database of multisim. So I looked up how to add a self made part to the database. This is were I am stuck.
I've selected 'single section component', and as footprint type 16-SOIC(S3). As number of pins I've selected 16. The symbols set I just left how it was. Then I could define my pins. Some output some pwr and some input and Gnd. Am I correct if I say that a pin which isn't used has a exclude ERC status?
After defining all this I clicked next. Then I came on set mapping, which I didn't really understeeand-even after reading the tutorial. I just made symbol pins and footprint pins the same, so 1->1 and ect. Again I clicked next.
Then there is my biggest problem: select the simulation model. I understand that I can do this in 3 ways:
Download a SPICE model from a manufacturer website or other source
Manually create a subcircuit or primitive model
Use a Multisim Model Maker
Or edit an existing model
I thought I'd find a spice model on the internet for the dg403 switch, but no way. So I don't really know what to do here.
Another thing is as output we have an Arinc429 (used on airplanes) output to an aircraft instrument. I have no idea how to simulate this in multisim.
It really sucks that I have to learn to work with multisim in less than a week and work with components which aren't even in the database. Has anyone an input/idea?
We have a wide variety of Switches available in the Basic Group >> SWITCH Family. These can allow you to simulate the desired behaviour for your circuit. Once the simulation is working as required, you can place a layout only component for the actual switch and use that to design your PCB.