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This eBook addresses some of the challenges and considerations when developing architectures and components to support these new multi-band, multi-services capabilities. The first article gives a good overview of multi-band microwave direct access using synthetic aperture radars using earth observation applications as an illustration. Articles two through four address how direct data converters and other components are enabling software satellites and other multi-band, multi-services transceivers. The final two articles explore using data converters and signal processing, in conjunction with optical interconnects to replace copper in the transport layer. We hope that this eBook gives you a good overview of the possibilities that can be enabled by high performance, direct access, multi-band, multi-services networks.

High-speed digital communications have been adopted so quickly because of a variety of performance advantages. The signals are quantized and may be encoded, making them less susceptible to noise and interference, which also increases the acceptable transmit range. Complex modulation schemes increase spectral efficiency, allowing for higher data rates and errors can be detected and corrected with processing. However, these communications networks must accurately reconstruct the sampled incoming signal, making timing synchronization critically important. This eBook focuses on jitter, simply defined as any effect that causes signal threshold crossing times to deviate from their expected positions. The first article addresses the inter-relationships between jitter and other noise-generating mechanisms. The second explains the types and sources of jitter and the third looks at how jitter propagates through the channel. The final six articles in this eBook show Skyworks’ broad portfolio of frequency flexible timing products along with how they compare to and can be incorporated with solutions from six different suppliers.