AUDIOPHONICS I-Sabre V3 DAC ES9023 TCXO

[rikardo1979]

(12th Jul, 2016 10:52 PM)Nachteule Wrote:  

(12th Jul, 2016 09:18 PM)rikardo1979 Wrote:  if you read back at this thread you find I using Audiophonics I-Sabre DAC which has power management built in Works a treat in RuneAudio, Volumio, MoodeAudio

I know

But there is still the question what "power management" is

Usually PM means that system is able to going into suspend or hibernate mode, but this is not supported by RPi

Quote:You can see there is actuator push button fitted on front which is wired into DAC board. DAC board is powered by +6V(up to 9V) which is plugged to RPi over GPIO. So RPi is taking power through it. Which means your sound coming out

Don't have such a board. I suppose this is done by hardware. This switch is turning on/off onboard power supply like a ATX PSU does

Btw, Hifiberry AMP+ also has power supply onboard and is powering RPi too, but can not turned on/off, it is always on

Quote:of DAC is not affected by crappy regulator on RPi Also this DAC has own TCXO clock which is perfect(this is one of the main issues on RPi)

I'm far away from being an audio guru, my old ears can't hear any difference

Quote:Display is OLED connected to DAC board again which is also running fine under RuneAudio or Volumio. There are some people who working on implementation into MoodeAudio too

AFAIK those pins are connected straight through from the RPI GPIO connector

in this case you can go ON/OFF by this PM So there are PY scripts to properly shutdown the system before it goes OFF. And than you bring it back ON by pressing it, so yes it is like ATX. Which is what I really missed on RPi

My ears are still good and I can hear a big difference in sound

Yes, is direct connection on the GPIO which is great clean solution