TSP #216 – Detailed RFIC Analysis of the Analog Devices GaAs 81-86GHz I/Q Direct Down-Converter MMIC

In this episode Shahriar reverse engineers an ADI GaAs 81-86GHz I/Q Down-Converter MMIC. The receiver includes a x6 LO multiplier chain and direct-down-conversion architecture based on pHEMPT single-balanced mixers using fundamental LO frequency.
The RFIC block diagram & die are examined in detailed. The live microscope images are annotated with signal flow drawings to describe various implemented blocks and IC functions.

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