Hi Magnus: I tried looking at the HP 5335A manual, but the one on the Agilent site has an unreadable A4 schematic. Do you have a high resolution A4 schematic, or better a schematic of the interpolator?
Have Fun, Brooke Clarke http://www.PRC68.com http://www.pacificsites.com/~brooke/PRC68COM.shtml http://www.precisionclock.com Magnus Danielson wrote: > > Indeed. Three-four transistors and a handfull of caps and resistors. The > Z3801A uses the 10 MHz clock and thus require a x1000 interpolation, which is > easy enought to acheive. Look at the HP5335A service manual for further > details. What you do is that you stretch the error-pulse (1-2 cycles) by > charging a cap with one current and discharging it with another, the output is > then run into a comparator for the sake of gain. This stretched pulse is then > measured with the coarse clock and voila! > > Cheers, > Magnus _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts