High Performance Clock Signal Generator
Original Publication Date: 1986-Aug-01
Included in the Prior Art Database: 2005-Mar-09
This article describes a clock signal generator (also known as a "clock-chopper") circuit that generates an output pulse whose width is greater than one-half of the oscillator input cycle time (a 50% duty- cycle oscillator), while also being able to control the pulse to its off-state during system testing. Pulse generation is very critical in high speed digital systems. A reduction in statistical pulse-width variation, for example, allows for a reduction in system path lengths with a corresponding improvement in system performance. Fig. 1 illustrates a method for generating a pulse that is greater in width than one half of the input cycle time. A 50% duty cycle pulse is typically used as an input source.