DocumentCode
2519420
Title
Power Management Unit for a Ground Referenced audio amplifier for mobile phones in 65nm CMOS
Author
Neri, Filippo ; Groeneweg, Willem ; Balucani, Marco
Author_Institution
ST-ERICSSON, Zurich, Switzerland
fYear
2010
fDate
26-28 April 2010
Firstpage
1362
Lastpage
1367
Abstract
This paper presents a fully integrated Ground Referenced Power Management Unit, made up of two linear voltage regulators and a regulated charge pump providing symmetrical power supply system for the earphone audio amplifier. Embedded in a CODEC for mobile phone application and implemented in a 65 nm CMOS technology, the paper illustrates in details the architecture and the final measurement on silicon, highlighting great performance for a high quality earphone audio amplifier successfully validated on silicon.
Keywords
CMOS integrated circuits; audio-frequency amplifiers; mobile radio; silicon; CMOS; CODEC; charge pump; earphone audio amplifier; ground referenced audio amplifier; ground referenced power management unit; linear voltage regulator; mobile phone; silicon; size 65 nm; symmetrical power supply system; CMOS technology; Charge pumps; Energy management; Headphones; Mobile handsets; Power amplifiers; Power system management; Regulators; Silicon; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
MELECON 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference
Conference_Location
Valletta
Print_ISBN
978-1-4244-5793-9
Type
conf
DOI
10.1109/MELCON.2010.5475996
Filename
5475996
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