A universal single chip analog CMOS speech processor for analog mobile cellular phones

Autor:	P. Vakiparta, J. Polonen, M. Gronroos
Rok vydání:	2003
Předmět:	Engineering Signal generator business.industry Speech processing law.invention Capacitor CMOS law Buzzer Electronic engineering business Total Access Communication System Computer hardware Advanced Mobile Phone System Electronic circuit
Zdroj:	[1992] Proceedings. Fifth Annual IEEE International ASIC Conference and Exhibit.
DOI:	10.1109/asic.1992.270260
Popis:	A single-chip analog CMOS speech processor for advanced mobile-phone system (AMPS), total access communication system (TACS), NMT900, and NMT450 mobile cellular phones is represented. The circuit includes all necessary speech processing functions including compressor, expander, and deviation limiters. It includes a multi-frequency generator and buzzer driver for DTMF and general purpose signaling. The circuit is integrated in a standard 2- mu m CMOS double-poly double-metal process and requires 32.8 mm/sup 2/. >
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::24cc411ac2b36c85e5e55804d037818d https://doi.org/10.1109/asic.1992.270260 Zobrazit plný text záznamu