Tag Archives: signal

Fundamentals of Analog/RF design: Noise, Signal, Power

By Poojan Wagh | Published: November 5, 2008
Analog design does not scale the way digital design does. Namely, as process shrinks, one does not immediately benefit by having reduced power consumption for the same performance. I will show in this post the main constraint involved in analog/RF design: that to maintain a given SNR, a certain amount of power must be consumed [...]
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Calculation of ADC SNR in Cadence Skill/Ocean

By Poojan Wagh | Published: September 3, 2008
However, here's how I compute SNR/SNDR from an FFT using Cadence Ocean/Skill.
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Analog vs Digital – Part 3: Digital

By Poojan Wagh | Published: June 16, 2008
In part 2, I defined the analog signal and the analog gadget. In this post, I give a definition for a digital signal/gadget with examples. signal: a digital signal occurs as a sequence of values gadget: a digital gadget processes information sequentially From this definition, very few things that one encounters are intrinsically digital. Nonetheless, [...]
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Analog vs Digital – Part 2: Analog

By Poojan Wagh | Published: June 16, 2008
In part 1, I defined the terms signal and gadget. In this post, I give a definition for an analog signal/gadget with an example. signal: an analog signal is a signal that always has a value. They key term is always. gadget: an analog gadget operates continuously on an analog signal. By this definition, everything [...]
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Analog vs Digital – Part 1: Introduction

By Poojan Wagh | Published: June 16, 2008
The last 20 years have greatly improved the feature set and portability of electronics and anything which does or can contain electronics. Nonetheless, most people don’t know what the word digital means. In this multi-part series, I will explain the difference between digital and analog, why digital processing is better than analog, and why some [...]
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