Title :
A high quality GaAs IC tuner for TV/VCR receivers
Author :
Mizukami, Hiroyuki ; Sakuta, Ken ; Hatashita, Hiroshi ; Nagashima, Toshio ; Shinkawa, Keiro ; Akitake, Isao ; Sakamoto, Kazumichi ; Shinagawa, Mitsuhisa
Author_Institution :
Hitachi Ltd., Yokohama, Japan
fDate :
8/1/1988 12:00:00 AM
Abstract :
A GaAs MESFET IC for a three-band (VHF/CATV/UHF) tuner is described. The IC can be used in TVs or video cassette recorders (VCRs). The IC incorporates VHF/CATV and UHF oscillators, buffer amplifiers for the oscillator signals, a double balanced mixer, a VHF/CATV-UHF switch buffer amplifiers, and an intermediate-frequency (IF) amplifier. Each circuit element is detailed. This IC makes full use of high linearity (low distortion) and the high maximum frequency of GaAs MESFETs. The IC overcomes high 1/f noise by careful circuit design.
Keywords :
III-V semiconductors; Schottky gate field effect transistors; colour television receivers; field effect integrated circuits; gallium arsenide; tuning; video tape recorders; 1/f noise; GaAs; III-V semiconductors; MESFET IC; TV receivers; VCRs; VTR; buffer amplifiers; circuit design; double balanced mixer; oscillator signals; oscillators; switch; three-band IC tuner; video cassette recorders; Gallium arsenide; Integrated circuit noise; MESFET integrated circuits; Oscillators; Switches; TV receivers; Tuners; UHF integrated circuits; VHF circuits; Video recording;
Journal_Title :
Consumer Electronics, IEEE Transactions on
