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Power supply for rechargeable portable DAC/headphone amp
Power supply for rechargeable portable DAC/headphone amp
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Old 21st December 2017, 09:14 AM   #11
Nikolai Petrenko is offline Nikolai Petrenko  Viet Nam
diyAudio Member
Join Date: May 2016
Location: Hanoi
Originally Posted by abraxalito View Post
By my calculations you'll only need 1.8V peak to reach 120dB so no need for step-up.

My suggestion would be to build an integrated DAC-amp using TDA1387 as your DAC. Its volume can be adjusted by a DC voltage control on its 'ref' pin so no need for any pot. Or alternatively use digital volume.
What a pity! I want something capable of decoding even 32 bit audio files. I don't think 32 bit or how many bit are important but I usually editting audio for film or recording. Always have to convert any thing into 16 bit before play is really a pain in the ***
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