A packaged 3 GHz timing interface unit for a laser altimeter system

Abstract

A Timing Interface Unit (TIU) integrated circuit is implemented in a Ft=45 GHz (Ft) AlGaAs/GaAs HBT process. The TIU was designed for a satellite based laser altimeter system with vertical resolution of 5 cms. The TIU performs two functions: (1) generate coarse count for the time-of-flight of the laser pulse; (2) retiming the return pulse with the clock for… (More)

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