ABSTRACT
This chapter introduces some traveling wave circuit techniques that address power, noise, and speed trade-offs in such SERDES systems. It suggests a traveling wave-based multiphase RX and TX front end. The chapter describes a full-rate RX-TX system with a high-performance phase interpolator. It discusses traveling wave phases for an analog-to-digital converter (ADC)-based phase-interleaved front end. The chapter presents systems in which low-noise multiphases of traveling wave oscillators were utilized to reach the same timing resolution with lower power consumption. High-speed fiber optic and backplane wireline infrastructures represent a significant segment in today's communication systems. High-speed serial link ICs can also be categorized into mux/demux or repeater in terms of functionality. Traveling wave oscillators, however, decouple the number of oscillation phases from the oscillation frequency, providing multiple symmetric phase tap points along with the traveling wave tracks of a very high frequency distributed oscillator.
