Search found 2 matches

by LarryWilliams
Tue Aug 19, 2003 9:15 am
Forum: General Discussion
Topic: Clock Chip
Replies: 3
Views: 1810

Clock Chip

I'm looking for a timekeeping chip (DIP Pkg.) that draws only a few uA of current. These days, it takes a processor to load 'em up, which I don't wish to use. O.K. - so I figured I could find a parallel data loading "real time clock" and broadside the data in, one word at a time, to initialize it. D...
by LarryWilliams
Wed Mar 12, 2003 12:22 pm
Forum: General Discussion
Topic: Microphones
Replies: 3
Views: 825

Microphones

I have a hare-brained scheme to detect minor air
leaks using an ultrasonic microphone. Trouble is, I don't know where I can get one that will
operate between 16-50 kHz. Most ultrasonic
transducers are for a narrow range, e.g. 38-40 kHz. Does anyone have any suggestions? Thanx in
advance.