Designing for Ultra-Low THD+N in Analog Circuits - diyAudio
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Old 1st June 2013, 09:19 PM   #1
xstreme is offline xstreme  Europe
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Default Designing for Ultra-Low THD+N in Analog Circuits

By Bruce Hofer, Chairman & Co-Founder, Audio Precision
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Old 1st June 2013, 11:52 PM   #2
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That is a great and very informative presentation!!!!
Thank for the link!!!
I wish it was in PDF form though.

jer
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Old 2nd June 2013, 12:03 AM   #3
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Quote:
Originally Posted by geraldfryjr View Post
That is a great and very informative presentation!!!!
Thank for the link!!!
I wish it was in PDF form though.

jer
Or even downloadable PPT.
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Old 2nd June 2013, 01:28 AM   #4
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Default Worth reading

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Originally Posted by xstreme View Post
For those with an electronics degree/job/background -
  • a nice reminder of everything we should not have forgotten about noise and distortion mechanisms in passive components (but that I don't see current graduates knowing)
  • plus some updates on his opinion of the SOTA
  • plus a nice distortion estimation technique


Capacitors seem to remain The Black Art of audio- his comments remind me of stuff Bob Pease used to mention in Pease Porridge. And also implied by Thorsten Loesch (1998 cable article) and someone else on capacitor film corrosion
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Old 2nd June 2013, 02:11 AM   #5
xstreme is offline xstreme  Europe
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Quote:
Originally Posted by geraldfryjr View Post
That is a great and very informative presentation!!!!
Thank for the link!!!
I wish it was in PDF form though.

jer

http://www.bonisaudio.com/THD/Design...g_Circuits.zip

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Old 2nd June 2013, 02:13 AM   #6
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Thanks
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Old 2nd June 2013, 04:11 AM   #7
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Cool!!!!
Thanks for the ZIP !!!!

jer
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Old 20th July 2013, 06:24 AM   #8
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Ditto!
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Old 20th July 2013, 07:12 AM   #9
RNMarsh is offline RNMarsh  United States
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All good stuff... makes me want to try some things he suggests doing with certain opamps to lower their distortion.

Thx-RNMarsh
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Old 20th July 2013, 11:43 AM   #10
CZ101 is offline CZ101  United States
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Would anyone care to comment on the point made about metal foil resistors and "modulation distortion" at low frequencies?
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