Project on Mixed Signal Vlsi
نویسنده
چکیده
This paper describes a doubly balanced Gilbert Cell mixer designed in BJT and CMOS technology to operate within 0 to 5 V. A 100 mv input signal was applied at both RF and LO port at different frequencies and their simulation curves were studied for a multiplier. The design done in BJT was taped out for fabrication and the chip on its return from foundry, was tested for its results. A comparison of theoretical and experimental results obtained after fabrication of the Four-Quadrant Gilbert cell mixer in 2-micron process is made. For CMOS process, Gilbert cell mixer was designed till the layout and was ready for handoff to the foundry. The chip was not fabricated in CMOS technology, but the output results were studied and compared in both BJT and CMOS technology.
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