ePIC pfRICH electronics mailing list

["Damien Thienpont (IN2P3)" <damien.thienpont AT in2p3.fr>]

    Hi Alexander,
    
    Indeed, we can disable TOT functionality and reduce (not really
    disable) the unused channels.
    We can also decrease the bias current of analog amplifiers. We can
    save power doing that and keeping good performance. Roughly I would
    say that we can save up to 30% power.
    Unfortunately, we cannot disable the trigger functionality.
    
    Cheers,
    Damien

Le 11/11/2023 à 13:37, Kiselev, Alexander a écrit :

          Hi Damien,
      
        
      
      
          Unless Pierrick asked you already, we are looking for options
        of reducing the HGCROC power budget for HRPPD application. Would
        anything like this be possible / help:
      
        
      
      
          (1) disable channels 64..71 (or 65..71)
      
        
      
      
          (2) disable TOT functionality
      
        
      
      
          (3) disable trigger functionality entirely (now we simply
        assume the trigger outputs are ignored?)
      
        
      
      
          Anything else? Presently we assume ~15 mW/ch ball park number
        (including shared circuitry) times 72, which is  ~1.1W / ASIC.
        How far down can one go disabling the unused stuff?
      
        
      
      
          Cheers,
      
            Alexander.