[Arm-netbook] ZeroPhone

[Luke Kenneth Casson Leighton]

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crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68


On Mon, Apr 17, 2017 at 4:19 PM, dumblob <dumblob at gmail.com> wrote:
>> > Why not use the STM32F072 for audio on the laptop?
>>
>>  not good enough dynamic range and quality, and it is still necessary
>> to have a amplifier.  i tried doing audio on an STM32F103RBT6 - i
>> learned that it would not be enough.  i *almost* managed it though.
>
>
> http://www.henryaudio.com/ - the components used in this device would be my
> inspiration when it comes to audio quality

 http://www.henryaudio.com/uploads/fact_sheet_mkII.pdf

 AK4430

 https://www.akm.com/akm/en/file/datasheet/AK4430ET.pdf

 $0.60 for 10pcs on aliexpress... no USB connecttion though

 bear in mind cost-wise it's competing against the CM108AH which is
below $1 and includes the USB PHY, supports SP-DIF and other digital
PCM formats, headphone jack, line-in and out modes, microphone, and
some control/config pins.  16-bit DAC, 16-bit ADC, 44.1khz and 48khz
sampling, and a built-in power regulator so you only need to supply 5V
from USB.

l.