The clock requirements of high performance systems vary from the chip to the circuit to the system level, but in every case the ideal is a fully synchronous system. Problems with traditional synchronized architecture—reliability and redundancy, scalability and cost, noise amplification and propagation—have led designers to develop clever asynchronous designs at both the system and circuit level. NEL Frequency Controls’ Synchronized Crystal Oscillator technology heralds a return to the performance of full synchronization at today’s clock speeds by eliminating the problems of legacy architecture.

In this paper we review the roles that clock signals play in digital systems and different techniques for distributing clock signals. We also show how NEL’s new Synchronized Clock Oscillator improves performance, decreases cost, and simplifies designs#8212;in other words: how NEL helps you work better, faster and cheaper.