Title :
Frequency mixer with a frequency doubler for integrated circuits
Author :
Kimura, Katsuji ; Asazawa, Hiroshi
Author_Institution :
Devices Dev. Dept., NEC Corp., Yokohama, Japan
fDate :
9/1/1994 12:00:00 AM
Abstract :
We have developed a bipolar LSI, including a frequency mixer and a local oscillator frequency doubler. The local oscillator frequency doubler consists of two identical unbalanced emitter-coupled pairs with a different emitter area ratio, whose input terminals are connected cross-coupled and whose output terminals are connected in parallel, and is coupled with the frequency mixer directly in the LSI. The fabricated LSI operates on supply voltage as low as 2.7, and has been put into practical use for a cordless telephone system
Keywords :
bipolar integrated circuits; frequency multipliers; large scale integration; linear integrated circuits; mixers (circuits); 2.7 V; LO frequency doubler; bipolar LSI; cordless telephone system; frequency doubler; frequency mixer; integrated circuits; local oscillator doubler; unbalanced emitter-coupled pairs; Central Processing Unit; Circuits; Clocks; Filters; Frequency; Large scale integration; Local oscillators; Low voltage; Telephony; Transconductance;
Journal_Title :
Solid-State Circuits, IEEE Journal of
