Audio Jack 2.5 mm

Ian Stirling openmoko at
Tue Apr 24 20:20:38 CEST 2007

Jeff Andros wrote:
> On 4/24/07, *Flemming Richter Mikkelsen* <quatrox at 
> <mailto:quatrox at>> wrote:
>     In reply to my own mail:
>     I have a motorola that has only one connector: the usb.
>     It works great for hands free. I don't know if this is supported by
>     the neo1973 hardware but if it is, this could be
>     the solution.

> Not having intimate dev knowledge of the PCB take what I'm saying with a 
> grain of salt, but most likely the USB port is on a dedicated 
> connection... if the USB controller is integrated in the SOC you've got 
> a chance to talk through the GPIO functions... but we're talking PWM 
> (late 90's ringtone type sounds (probably not mp3 or anything)) the 
> chances that in the current version the audio chip is multiplexed to the 
> usb port is fairly slim...

The USB chip is integrated into the SOC, the sound chip is on another 
bus. You can get arbitrary sound quality over USB, with a USB DAC.

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