https://www.okdo.com/getting-started/get-started-with-dacberry-400-raspberry-pi-400/

W.



The Pi Code Zero’s Dialog Semiconductor DA7212  has a SNR of 90 dB ADC, 100 dB DAC

https://www.mouser.co.uk/datasheet/2/698/REN_da7212_datasheet_3v4_DST_20180531-3076008.pdf

The DACBerry is slightly higher at 92dB ADC, 102dB DAC but the difference isn’t supposed to be perceivable by the human ear.

Best,

Julian

On 28 Jul 2023, at 19:52, Grant Smith <grant@soundtent.org> wrote:

thanks very much, Julian

looks promising!

this link refers to a 'programmable microphone bias level'

http://osaelectronics.com/get/raspberry/dacberry/400/m/datasheet/DACBerry_400M_datahseet.pdf

so could well work with electret microphones

i don t know how to interpret the SNR figures

bw

grant

On 25 Jul 2023, at 13:08, Julian Weaver <julian@finetuned.org> wrote:

Hi all,

Just a heads up that the DACBerry 400 M for Raspberry Pi 400 (the keyboard hybrid) has a line/mic input.

I would assume its powered but there’s no mention of it on the datasheet:

https://osaelectronics.com/get/raspberry/dacberry/400/m/datasheet/DACBerry_400M_datahseet.pdf

It also has some integrated DSP

https://thepihut.com/products/dacberry-400-m-for-raspberry-pi-400

Best,

Julian

Julian Weaver
Director

Finetuned Limited
The FuseBox, Level 4 North
New England House
Brighton
BN1 4GH

www.finetuned.org
@finetunedltd

0203 576 2356
07803 137 887

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