On Dec 2, 2011, at 10:59 AM, Hal Murray wrote: > I've been playing with one of the Dallas DS32KHZ parts. I'm guessing you are > [...] > Another possibility is that I didn't ground the NC pins. (I didn't notice > that in the data sheet until I read it again looking for crap like that.)
Using a DS1306, I found the ground plane was essential for a stable 32768 Hz signal. I tried a number of ground planes in a proto board I was building. Who would have predicted that the best results came from the ground plane that was described in the 1306 datasheet. Lesson: before using a DS32KHz, I'll definitely connect the "NC pins" (sic) to ground as specified in the datasheet. > You might try a pair of tvb's picPETs. +1E3 on tvb's picPETs! Thanks, Tom! Kevin _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.