Open Hardware DSP Platform
  • Home
  • Overview
  • Getting Started
  • The Hardware
  • Projects
  • Contact
  • Licensing
  • Blog

AmpTwo

3/24/2017

0 Comments

 
A new module is up on GitHub. This times it's a dual stereo headphone amplifier, although it is 4 indepentant channels connected to 2 stereo jacks so you could do what you want with it really.

Design is a little over-complex. It has balanced to single ended buffers feeding two good old fashioned dual potentiometers. There is then an op-amp based class B amplifier for each channel. Gain is set at 0dB for initial testing as the ADAU1966 puts out good voltage, but gain could be increased where this is needed. 

I have used these type of headphone amplifiers before and they seem quite stable and they will burn out the headphones before you run out of volume/power... They can also drive small speakers if needed.

Design untest at the moment, and the 220pF capacitors on the op-amp negative inputs may be not-fitted or a different value in the end.
0 Comments



Leave a Reply.

    Paul Janicki

    An electronics engineer and a long term electronics hobbyist. I like tinkering with stuff and making things. 

    Archives

    July 2022
    June 2021
    March 2021
    December 2020
    September 2020
    July 2020
    June 2020
    May 2020
    April 2020
    March 2020
    May 2019
    April 2019
    March 2019
    December 2018
    October 2018
    September 2018
    June 2018
    March 2018
    January 2018
    November 2017
    September 2017
    July 2017
    May 2017
    April 2017
    March 2017
    February 2017
    January 2017
    December 2016
    September 2016
    August 2016
    June 2016
    May 2016
    April 2016
    March 2016
    February 2016
    January 2016

    Categories

    All

    RSS Feed


Powered by Create your own unique website with customizable templates.
  • Home
  • Overview
  • Getting Started
  • The Hardware
  • Projects
  • Contact
  • Licensing
  • Blog