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

Volume

34

Issue

3

fYear

1988

fDate

8/1/1988 12:00:00 AM

Firstpage

625

Lastpage

633

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;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.20163

Filename

20163