[linux-audio-user] USB 1.1 soundcard

Dan Mills dmills at spamblock.demon.co.uk
Sun Nov 14 20:04:32 EST 2004


On Sunday 14 November 2004 23:51, Karsten Wiese wrote:
> Don't know, but a step up converter wouldn't need much power, if the 48V
> would only feed some µA. I guess a phantom powered mic sucks less than 1mA,
> no?
> Somebody knowing please tell us;-)


It is fed to the mic thru a pair of 6K8 resistors and the mic will pull it 
down an arbitary amount. Some mices will pull 5mA or so. Not particularly 
problematic with but hardly uA. 

Regards, Dan.




More information about the Linux-audio-user mailing list