Sparkle Drive (NE5532N) issue

[alderbody]

I built a sparkle drive clone from the schematics i found here in the forum,
but there's something that bothers me.

In MarkM's layout i saw that the NE5532N chip takes the +9V on pin 4 and the ground on 8,
while the datasheets i found suggest the opposite connection pattern.

My chips are NE5532P.

The schematic calls for a NE5532N. Does that "N" make the difference?
(N for negative, P for positive, perhaps      )

Please enlighten me on this.
Of course i could try both connections and probably sacrifice one chip,
but i guess i could avoid that method.

Thanks!

[PerroGrande]

The 5532 shares the common, standard pinout of a dual op-amp.  Pin 4 is the negative supply, pin 8 is the positive supply.  When the chip is operated on a single supply (such as a 9V battery), pin 4 should be grounded and pin 8 should be connected to the 9V supply.

[raulgrell]

From what I could tell from the datasheets the pin-outs are the same, so it should work with either one... The difference is probably different voltage ratings or soemthing, didn't have time to check it out carefully... Google search should help...

[soulsonic]

According to the Texas Instruments datasheet, the "P" suffix version is the standard normal one in a PDIP case (the usual 8 pin thing). Maybe the "N" version is a suffix used by a different manufacturer? The TI datasheet doesn't mention it.