Title :
A new audio processor for EIAJ MTS
Author :
Yamamoto, Yoshihiro ; Kume, Tsutomu ; Hashimoto, Fumiharu ; Ohya, Kouichi ; Miura, Satoshi ; Sekino, Takeo ; Ishii, Yasuaki
Author_Institution :
Sony Corp., Tokyo, Japan
fDate :
8/1/1988 12:00:00 AM
Abstract :
A bus-controlled 30-pin audio processor integrated circuit (IC) is described that uses an inter-IC bus system, integrated filter technology, and high-level integration bipolar process. The IC is divided into an MPX decoding block and a sound processing block. In the MPX block there are four bus-controlled integrated filters, FM demodulators for subchannel and identification (ID) decoding, and AM demodulators for detecting the subcarrier and ID signal. The sound processing block consists of source selection electronics, a 5-bit 2-dB step volume control and a 4-bit 2-dB step tone control.
Keywords :
Hi-Fi equipment; bipolar integrated circuits; colour television receivers; digital signal processing chips; 4 bit; 5 bit; AM demodulators; EIAJ MTS; FM demodulators; ID signal detection; MPX decoding block; TV receivers; bipolar IC; bipolar process; bus controlled audio processor IC; identification decoding; integrated filter technology; inter-IC bus system; multichannel TV sound; sound processing block; source selection electronics; subcarrier detection; subchannel decoding; tone control; volume control; Band pass filters; Bipolar integrated circuits; Computer displays; Control systems; Costs; Decoding; Demodulation; Digital control; Filters; Integrated circuit technology; Process control; Production; Resonant frequency; Signal processing; TV;
Journal_Title :
Consumer Electronics, IEEE Transactions on
