Errrmmm... -VDC?

[LegendBreath]

Hi,
I got some chip that is marked -VDC and a +VDC... of course, but how do i do that -VDC do I only  use the ground of my power supply, like my power supply is build up that way >transformer>bridge>capacitor and on that capacitor I got a + and a -, well, do I plug those two wires on the chip?

Sorry for my "noobish" stage but we all went in that stage one day ^_^

 

[LegendBreath]

Its a STK4171 if you need more info check out this post:
http://www.electronics-lab.com/forum/index.php?topic=4901.0

And if its really a -VDC, what do I need to do that? Is is a special regulator or something like that?

 

[audioguru2]

This datasheet shows a pic of its pins, a dual-polarity power supply, a typical stereo amp schematic using it and a pcb for it: http://www.datasheetarchive.com/semiconductors/download.php?Datasheet=2007735