Title :
An AM/TV/FM stereo radio IC including IF filters for a DTS
Author :
Okanobu, Taiwa ; Tomiyama, Hitoshi ; Kawamura, Yukinobu
Author_Institution :
Sony Corp., Tokyo, Japan
fDate :
8/1/1997 12:00:00 AM
Abstract :
A single-chip AM/TV/FM stereo radio IC including IF (intermediate frequency) filters for a digital tuning system has been developed. The IF filter center frequency is controlled by new low-noise, low-distortion equivalent resistor circuits. Even though the value of resistors varies naturally, the center frequency can be fixed. Consequently, a radio IC including IF filters can be used for a DTS (digital tuning system), and peripheral components and production costs are reduced
Keywords :
Hi-Fi equipment; active filters; amplitude modulation; digital radio; digital signal processing chips; digital television; large scale integration; radio receivers; television receivers; tuning; AM/TV/FM stereo radio IC; DTS; IF filter center frequency; LSI; analog active filters; digital tuning system; intermediate frequency; low-distortion equivalent resistor circuits; low-noise equivalent resistor circuits; peripheral components; production costs reduction; Circuit optimization; Costs; Digital filters; Digital integrated circuits; Frequency; Production systems; Radiofrequency integrated circuits; Resistors; TV; Tuning;
Journal_Title :
Consumer Electronics, IEEE Transactions on
