Monday, January 5, 2015

Multiple Feedback Bandpass Filter in practical way (Spectrum Analyzer Circuit)

Spectrum Analyzer Circuit Diagram and PCB Layout


click to open for original size.



Multiple bandpass filters used for above PCB and LM324 Quad Op Amp is recommended for circuit. 7 gates used for 7 channels to separate the audio signal.


Display bar graph are for 7 channels to illustrate. 
original PCB and Circuit Design is made by PCB House in Sri Lanka and now manufactured by Crown PCB.



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4 comments:

  1. ShaheenDecember 1, 2017 at 5:05 AM

    please Spectrum Analyzer Circuit Diagram and PCB Layout, shaheen814@gmail.com

    ReplyDelete
  2. AnonymousNovember 16, 2018 at 2:24 PM

    Can you send me the schematic, please? electronica-2010@sapo.pt

    ReplyDelete
  3. UnknownJanuary 4, 2019 at 8:53 PM

    Pls send me your mobile number chamindakariyawasam08@gmail.com

    ReplyDelete
  4. Krishna InamdarSeptember 15, 2020 at 5:42 AM

    Watts the real lxw PCB size

    ReplyDelete

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