An analog and digital record, playback and processing system using a coarse-fine programming method

Author

Holzmann, Peter ; Jackson, Geoffrey B. ; Raina, Aditya ; Pai, Hung-Chum ; Chang, Ming-Bing ; Awsare, Saleel V. ; Engh, Lawrence D. ; Kao, Oliver C. ; Palmer, Carl R. ; Liu, Chun-Mai ; Kordesch, Albert V. ; Su, Ken ; Hemming, Mark

Author_Institution

Winbond Electron. Corp. America, San Jose, CA, USA

fYear

2001

fDate

2001

Firstpage

192

Lastpage

195

Abstract

A system on chip for conditioning of voiceband analog audio signals and nonvolatile storage for use in mobile communication devices is presented. The system allows for direct interface to acoustic transducer elements and provides signal conditioning to gain adjust, multiplex, filter and mix two independent signals. The system can record these processed signals as analog samples in a nonvolatile flash EEPROM array for later retrieval. Together with the integrated signal path the system can store up to 16 minutes of audio signal. Control of the system is achieved via a serial interface, which is used to configure and control the device. The serial interface can also be used to store digital data into the flash EEPROM array. All necessary components of the system are provided on chip including analog processing elements, nonvolatile storage and high voltage and reference generation

Keywords

EPROM; VLSI; application specific integrated circuits; audio recording; cellular radio; mixed analogue-digital integrated circuits; acoustic transducer elements; analog processing elements; analog samples; coarse-fine programming method; mobile communication devices; nonvolatile flash EEPROM array; nonvolatile storage; serial interface; system on chip; voiceband analog audio signals; Acoustic transducers; Control systems; Driver circuits; EPROM; Energy consumption; Mobile communication; Nonvolatile memory; Signal processing; System-on-a-chip; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Technology, Systems, and Applications, 2001. Proceedings of Technical Papers. 2001 International Symposium on

Conference_Location

Hsinchu

ISSN

1524-766X

Print_ISBN

0-7803-6412-0

Type

conf

DOI

10.1109/VTSA.2001.934517

Filename

934517