Glitch-free-turbo-circuit


Posted on Aug 22, 2012

This simple circuit generates a dual-speed clock for personal computers. The circuit synchronizes your asynchronous switch inputs with the master clock to provide glitch-free transitions from one clock speed to the other. The dual-speed clock allows some programs to run at the higher clock speed in order to execute more quickly. Other programs- for example, programs that use loops for timing-can still run at the lower speed as necessary. The circuit will work with any master-clock frequency that meets the flip-flops minimumpulse- width specs.


Glitch-free-turbo-circuit
Click here to download the full size of the above Circuit.

The two D two flip-flops, JC1 and IC2, and an XOR gate, IC3, form a binary divider that develops the 6- and 12-MHz clocks. When the NT signal is low, the reset pin forces the 6cMHz output low. On the other hand, when the NT signal is high, JC3 blocks the 12-MHz output. Therefore, only one of the two clock signals passes through JC3 and gets clocked into IC6. Because the master-elk signal clocks IC6, asynchronous switching of the NT signal can"t generate an output pulse shorter than 41 p.s (1/24 MHz). Also, the synchronization eliminates glitches.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

model train detector using photocell
DPP adds versatility to VFC
Headphone Amplifier
Five-step voltage-level indicator
Pulse-amplitude-discriminator
Full Bathtub Indicator
65W PoE DC-DC converter
Laser Alarm
TDA1029 audio signal source switch circuit diagram electronic project
A Simple Dual H-Bridge
USB Live Oscilloscope: Digital Input Board
And put the intermodal server preamplifier circuit diagram



Top