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Basic I2S input configuration

gamma3, gamma24 (plug-in for the γ3)

Basic I2S input configuration

Postby TheLastGerman » September 1st, 2017, 7:32 am

Will the γ3 work when just connecting SDATA, SLRCK andSCLK to it's I2S inputs or are any further measures needed to make it sing?

(Waiting for my γ3 board and parts to arrive - Thanks to AMB for lightning-fast order handling!)
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Re: Basic I2S input configuration

Postby TheLastGerman » September 1st, 2017, 12:45 pm

Oops, sorry: I meant the γ24.
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Re: Basic I2S input configuration

Postby amb » September 1st, 2017, 12:55 pm

You also need the I2S logic level reference and ground connections, for a total of 5 wires. See the "Other options" section at the γ3 website.
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Re: Basic I2S input configuration

Postby amb » September 1st, 2017, 12:57 pm

TheLastGerman wrote:Oops, sorry: I meant the γ24.

OK, then you need to make sure your I2S source is 3.3V logic level, and also need the ground wire, for a total of 4 wires.
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Re: Basic I2S input configuration

Postby TheLastGerman » September 1st, 2017, 1:48 pm

... and also need the ground wire ...
Of course, I forgot to mention it - no voltage reference, no signal at all. Thank you!

I will replace the clumsy DAC board in my Audio-GD NFB-10WM: http://www.audio-gd.com/Pro/Headphoneamp/NFB10XLR/NFB10WMEN.htm

Image

A lousy two layer board supplied by a bunch of LM317 Vregs miles away.
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