A 500 MHz GaAs digital RF memory modulator IC

A single chip digital radio frequency memory (DRFM) modulator provides time delay, Doppler shifting, and phase/amplitude modulation of RF signals. The digital IC has been implemented in Vitesse Semiconductor's H-GaAs III technology for operation up to 500 MHz, and was designed with COMPASS Design Automation's CAE tools and SPEC's standard cell libraries.