JohnSwenson Wrote: > I just looked at the Big Ben spec sheet and its 75 ohms, but it doesn't > specify the voltage level. You either need to get that from Apogee or > maybe someone else that knows the answer can chime in. So you are going > to need a 75 ohm BNC connector and at least 1 maybe two resistors for > the simple case. Make absolutely SURE you have a 75 ohm BNC, most BNCs > out there are 50 ohm, this will compromise the clock. How and where you > mount the connector and how you get the signal from the connector to the > board are going to be important. Since the SB does not have a metal case > you will have to run a ground to the connector as well as the "signal". > Probably the best way to do this is with a short piece of 75 ohm coax > from the connector to the board. At the board you will have your 1 or > two resistors. Alternatively you could just use a "pigtail", a short > piece of coax coming out of the box with a cable mount female connector > rather than a mounted BNC jack. This would be easier to implement and > actually probably work better. > > Once you find out the voltage level we can go over the details. > > John S. Hi John,
Thank you for your reply. The Apogee Big Fen provides 6 Word clock outputs, of which two could be set to multiple of the sample rate. The connection termination required is 75 ohm. I can't find the output voltage on the spec., but I measured the output voltage at the output BNC at 2.5V. A pigtail seems like a reasonable approach to me. I already have the coax cable and femate BNC connect ready. Best Regards, Wayne -- Wayne ------------------------------------------------------------------------ Wayne's Profile: http://forums.slimdevices.com/member.php?userid=6499 View this thread: http://forums.slimdevices.com/showthread.php?t=24800 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
