Pulse and Digital Circuits

15.1 INTRODUCTION

Many types of waveform generators (sinusoidal generators, square-wave generators, sweep generators, etc) are used in pulse and digital circuits. These different waveform generators may have the same frequency. In many applications, these generators are required to run in synchronism or in step with another–which means that they should arrive at some reference point in their cycle at the same time. Alternately, it is also possible that these waveform generators may operate at different frequencies. Also, it is possible that one generator completes one cycle, whereas the other may complete an integral number of cycles (2, 3, …, n) in the same time period. Still, it becomes necessary that these generators should run in synchronism, ...