Changes between Version 6 and Version 7 of Mu2eClockSynth


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Timestamp:
Jun 2, 2015, 9:39:48 AM (6 years ago)
Author:
hazen
Comment:

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  • Mu2eClockSynth

    v6 v7  
    7272* Resistors R1-R16 should be connected to -3.3V, not GND (Doh!).  Omitted them and installed thru-hole ones on the back wired to 3.3V on the as-built boards.
    7373* USB connector shield can't be grounded on the board otherwise 3.3V is shorted to GND and the regulator shuts down.  Cut the end off the USB cables and soldered the power wires to the input (across C6).
     74* Output 3-pin connector pinout is end-wise reversed.  Pin 1 is GND, pin 3 should be GND to match CAEN standard
    7475
    7576Here is the specification we were given: