JohnSwenson;538679 Wrote: > Its very simple. The DAC has a voltage out, so no I/V stage is needed. > The output goes to a series resistor after which is a cap to ground > (low pass filter) then a series cap (SMD electrolytic, not sure of the > model) and on to the RCA jack. > > The only thing that bothers me is that electrolytic cap, it doesn't > really need to be there. The voltage out from the DAC chip is already > ground referenced. Without a polarizing voltage the electrolytic cap > won't be working correctly. Unless its a non polar electrolytic. > > John S.
Interesting, thanks John. Presumably the series cap is there to remove DC offset, however according to the spec sheet of the AK4420 this should be less than 60mV. Can you see the value? -- struts ------------------------------------------------------------------------ struts's Profile: http://forums.slimdevices.com/member.php?userid=14057 View this thread: http://forums.slimdevices.com/showthread.php?t=77716 _______________________________________________ Touch mailing list Touch@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/touch
