It seems like only yesterday that I introduced myself as the new editor of Analog Dialogue, and with this issue, I must now say goodbye, as retirement has arrived at my door. Editing Analog Dialogue for this short time has been a rewarding experience for me, especially since I had the pleasure (and challenge) of participating in its 2016 format redesign and online media upgrade. It’s been a special delight working with the authors within the ADI engineering community and in serving you, the readers. Without your interest, participation, and feedback, this whole thing could be, well, just a noise source.
Rest assured, Analog Dialogue will continue to evolve, to stay current with the dynamics of the electronics industry, and it will adapt to the ever-changing engineering experience. The high performance analog and mixed-signal design landscape is changing dramatically for the better, as the corporate entity resulting from the pending ADI acquisition of Linear Technology hits its stride. Exciting times are ahead and Analog Dialogue will be there to provide insight into new technologies and to give you the in-depth knowledge that just might spark your next-generation system design.
In this issue, Jarrah Bergeron tackles the topic of phase noise in high speed digital-to-analog converters. He explains how to make quantitative sense of phase noise and how to understand and design around its contributions. The article works through a methodology that neither over-designs nor under-designs for the phase noise requirement, but rather allows you to get it right the first time.
In the second feature article, Frank Kearney and Steven Chen address the well-known fact that active components generate nonlinearities in systems and that various techniques have been developed to improve the performance of such devices during the design phase. But we can’t neglect the fact that passive devices can also introduce nonlinear effects that, if not corrected, will have serious effects on system performance. The authors explore various sources of passive intermodulation (PIM) in RF signal chains and describe design solutions for mitigating the effects.
So, to all our readers around the world, keep breaking those technology barriers and continue to tune in to this channel, to stay “ahead of what’s possible”!