A 2.7 V 800 MHz-2.1 GHz transceiver chipset for mobile radio applications in 25 GHz f/sub t/ Si-bipolar

A 800 MHz-2.1 GHz, 2.7 V transceiver chipset for mobile radio which includes transmitter with direct conversion quadrature modulator, IF and RF frequency synthesizing, receiver with LNA, mixer, programmable 80 dB-IF-amplifier and quadrature demodulator Is reported. The /spl sim/4 mm/sup 2/, 25 GHz f/sub t/ bipolar chips consume <250 mW.