May 9, 2007 #1 0 020170 Full Member level 4 Joined Jan 31, 2005 Messages 231 Helped 3 Reputation 6 Reaction score 1 Trophy points 1,298 Activity points 2,221 I analyzed oscillator circuit yesterday. some oscillator circuit have no latch at the output but many oscillator circuit have latch circuit at the output of oscillator. If I put the latch circuit to the output of oscillator, clock signal is divided by half. following picture is oscillator circuit & its waveform. in my opinion, Latch circuit is not necessary in the oscillator circuit. Without Latch circuit, oscillator circuit could work properly. Nevertheless, some oscillator have latch circuit. I guess it must be reasonable ground. Why did somebody put the latch to the output of oscillator? thanks
I analyzed oscillator circuit yesterday. some oscillator circuit have no latch at the output but many oscillator circuit have latch circuit at the output of oscillator. If I put the latch circuit to the output of oscillator, clock signal is divided by half. following picture is oscillator circuit & its waveform. in my opinion, Latch circuit is not necessary in the oscillator circuit. Without Latch circuit, oscillator circuit could work properly. Nevertheless, some oscillator have latch circuit. I guess it must be reasonable ground. Why did somebody put the latch to the output of oscillator? thanks
May 10, 2007 #2 M mists Full Member level 5 Joined May 14, 2002 Messages 275 Helped 22 Reputation 44 Reaction score 9 Trophy points 1,298 Location China Activity points 1,281 maybe for good duty cycle
May 10, 2007 #3 butterfish Full Member level 2 Joined Oct 26, 2005 Messages 135 Helped 9 Reputation 18 Reaction score 3 Trophy points 1,298 Location china Activity points 2,012 usually, the comp output is saw-wave or sin-wave, a schmitt triger is needed when output it to square-wave, rs-latch can also used as a schmitt triger. if divide by 2 used, you must need 50% duty cycle, as mists said.
usually, the comp output is saw-wave or sin-wave, a schmitt triger is needed when output it to square-wave, rs-latch can also used as a schmitt triger. if divide by 2 used, you must need 50% duty cycle, as mists said.