Issue link: https://iconnect007.uberflip.com/i/1457913
54 DESIGN007 MAGAZINE I MARCH 2022 5. Power Delivery Develop a plan for delivery of power to all the necessary parts. It is a good practice to draw power from a plane or a bus. You never want to simply run the power from one component to the next, as that practice can really cause lots of issues with your designs. Also, make sure to use bypass capacitors and low pass filters to ensure that there are no unwanted spikes or outages to critical components. 6. Verify Components' Footprints Measure twice, cut once. You should verify—either on your own or through a library process—that the electronic versions of all components match the physical. Rely on your datasheet during this process to verify that the pad size and pitch are what is documented. e datasheet is also your best tool to confirm that hole size in the footprint not only matches but also considers maximum material condition. Everything has a tolerance so use the worst case for establishing the maxi- mum material condition. ere is nothing worse than receiving your boards from the manufac- turer and thinking you are ready for assembly, then realizing that either the part in your hand will not fit onto the spot on the board or that the leads for the part will not fit into the hole. PCB layout isn't as easy as it might seem. By following a logical process and planning for the inevitable you can increase the likelihood that your prototype will come out as you had designed. DESIGN007 Matt Stevenson is the VP of sales and marketing at Sunstone Circuits. To read past columns or contact Stevenson, click here.