Signal Quality and Reference Signal Sources Required for Communications Systems (1) (July 2013)

Key Specifications for Oscillators Used as Reference Signal Sources and Introduction of Related Products

The world of communication networks is similar to a tree, expanding from core and metro networks to mobile backhaul, access, and enterprise networks (LAN/SAN). Technical standards have been outlined for each type of communication. The expansion of high-speed communication devices and video streaming seen in recent years has resulted in continues increase in the amount of traffic flowing along the internet backbone. In response to speed increases and data volume, we are seeing the upgrading and expansion of the communications infrastructure equipment. The communication protocols that facilitate this type of high-speed data communication require performance in transmission channels and bit error rate (“BER”) (refers to the bit error rate calculated by dividing the number of error bits among data received by the recipient during transmission by the total number of data bits transmitted). In particular, BER Value is defined by signal quality, noise and jitter properties of the signal.