Sipher 0 Report post Posted February 26, 2004 oh ok Share this post Link to post Share on other sites
Sipher 0 Report post Posted February 27, 2004 i just learnt that for quartz clock, there's ppm value and a pF value. i suppose the lower the ppm the better? does it matter what pF value to use? help? Share this post Link to post Share on other sites
hacknet 0 Report post Posted February 27, 2004 the pF is the capacitance of the internal circuit. since we are dealing with high frequencies, a little capacitance would mess it all up. Share this post Link to post Share on other sites
Guest Ruach Report post Posted February 28, 2004 i just learnt that for quartz clock, there's ppm value and a pF value. i suppose the lower the ppm the better? does it matter what pF value to use? help? Yes, it matter which pF spec your replacement quartz clock has. Try to replace it with something that has the same value. Yes, the lower the ppm the better the performance though it is just slightly better. Other factors like the quality of the power supply are more important. Share this post Link to post Share on other sites
