Wednesday 4 June 2014

circuit analysis - Help digesting schematic layout


Can someone help me figure out what the little letters and numbers mean on the pins of this ic?


They're used throughout various ics in this iPhone 6 schematic. Are they indicating sequence?


For example A1 happens first then A2 etc or? enter image description here


Sorry that it's showing up blurry. It's crystal clear on my phone. Not sure why it's compressed like that





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