DocumentCode
2546216
Title
A 1 watt audio amplifier in a standard digital 90-nm CMOS technology
Author
Becker, Rolf ; Groeneweg, Willem
Author_Institution
Philips Semicond. Zurich, Switzerland
fYear
2005
fDate
12-16 Sept. 2005
Firstpage
255
Lastpage
258
Abstract
An audio amplifier in a standard 90-nm CMOS technology is designed for direct battery hook-up in a mobile phone. Special techniques have been applied to run it from a supply voltage of up to 5.5 V. The circuit does not require a dedicated supply voltage generator, it can be integrated on the same chip with the digital signal processor, provides high output power, good power supply rejection and good efficiency.
Keywords
CMOS integrated circuits; audio-frequency amplifiers; mobile handsets; 1 W; 90 nm; audio amplifier; digital CMOS technology; digital signal processor; direct battery hook up; mobile phones; Batteries; CMOS technology; Circuits; Energy consumption; Mobile handsets; Power generation; Power supplies; Signal generators; Speech; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference, 2005. ESSCIRC 2005. Proceedings of the 31st European
Print_ISBN
0-7803-9205-1
Type
conf
DOI
10.1109/ESSCIR.2005.1541608
Filename
1541608
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