By Marvin Onabajo
This ebook describes a number of thoughts to handle variation-related layout demanding situations for analog blocks in mixed-signal systems-on-chip. The equipment provided are effects from contemporary study works concerning receiver front-end circuits, baseband clear out linearization, and knowledge conversion. those circuit-level suggestions are defined, with their relationships to rising system-level calibration methods, to song the performances of analog circuits with electronic suggestions or keep an eye on. assurance additionally encompasses a technique to make the most of on-chip temperature sensors to degree the sign strength and linearity features of analog/RF circuits, as verified via attempt chip measurements.
- Describes numerous variation-tolerant analog circuit layout examples, together with from RF front-ends, high-performance ADCs and baseband filters;
- Includes integrated trying out suggestions, associated with present business trends;
- Balances digitally-assisted functionality tuning with analog functionality tuning and mismatch aid approaches;
- Describes theoretical techniques in addition to experimental effects for try out chips designed with variation-aware techniques.
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Additional resources for Analog Circuit Design for Process Variation-Resilient Systems-on-a-Chip
4 also visualizes the equivalent capacitive load seen at the V1+ and V1- inputs, where Cpt represents the effective gate-to-ground(AC) capacitance from transistor parasitic capacitances. With this configuration, the gate voltages are: VG+/- = (CFG1/Ctotal)V1+/- ? (CFG2/ Ctotal)V2+/-, where Ctotal & CFG1 ? CFG2 when Cpt is negligible. It follows that the attenuation factors in Fig. 3 are: CFG1/Ctotal = k1 and CFG2/Ctotal = (Ctotal - CFG1)/Ctotal = 1 – k1. 1–1% using proper layout techniques. 3 Circuit-Level Design Considerations 39 Fig.
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