TRANSCEIVER DEVELOPMENT IN VHF/UHF/GSM/GPS/BLUETOOTH/CORDLESS TELEPHONES

摘要

A digital communication circuit (10) can be implemented can be implemented in a CMOS, or other IC structure. The digital circuit (10 can utilize negative frequency removers or image frequency removers in the digital domain. The circuit (10) can include mixers (20- 20D), switches, a complex filter, a low noise amplifier and summers (40A-40B) for digitally removing the image frequency.