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ADAU1442 DSP - micro production line!

Posted 4th July 2012 at 02:36 AM by googlyone

I got to the point with my new audio DSP / crossover that I had no more excuse not to load the remaining PCB's I had manufactured.

I initially only loaded one of them, on the basis that if I had a clanger in the layout I could get a new spin of the boards.

Well the thing is all working and I have updated the DAC board - so the remaining five boards needed loading. I find a bit of PCB manufacture and loading to be quite therapuetic - as my previous blog entries will show.

This weekend I found my limit - loading the SMD's for these five boards - by hand in my toaster oven - took about three hours, then loading all the through hole parts, particularly headers and power supply parts blew away I would guess six more hours. I am over it!!!!

They do look pretty though!

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The only part remainig to be loaded on these boards is the ADAU1442 regulstor transistor. Thay will allow me to test the power supply, regulators and I/O prior to applying power to the DSP.

The first of these boards just worked when completed. The only issue I face from here is shorted pins on the DSP / logic chips or incorrect parts loaded in the power supply. My fingers are crossed on that as visually everything is cool - so any shorts remainnig will be bastards to isolate.

I am left with one lonely ADAU1442 IC, as Analog Devices sent me a sample that got loaded on the first PCB. Not quite sure what to do with it - if all these boards work it will be surplus I suppose.
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  1. Old Comment
    Wow, what does it all do? Good looking boards.
    Posted 8th January 2014 at 02:04 AM by nrg2009 nrg2009 is offline

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