Title :
A stereo earphone driver with volume control in 65-nm CMOS technology
Author :
Tanzil, Alexander ; Dasgupta, Uday
Author_Institution :
Media Tek Singapore, Singapore, Singapore
fDate :
Jan. 9 2009-Dec. 11 2009
Abstract :
A 16-¿ earpiece driver design with a built-in volume control for use in mobile phones or other portable devices is described. The fabrication was done with UMC 65-nm CMOS technology. The dual channel design features -91 dB THD at 2.5 Vpp, 1 kHz and 94 dB SNR in measurement while consuming 7.6 mW and 0.1 mm2 per channel.
Keywords :
CMOS integrated circuits; driver circuits; earphones; harmonic distortion; volume control; CMOS technology; dual channel design; mobile phones; portable devices; power 7.6 mW; resistance 16 ohm; size 65 nm; stereo earphone driver; total harmonic distortion; voltage 2.5 V; volume control; CMOS technology; Capacitors; Driver circuits; Frequency; Headphones; Mobile handsets; Power amplifiers; Power supplies; Radio control; Resistors; Amplifiers; audio amplifiers; distortion; earphones driver; gain control;
Conference_Titel :
Radio-Frequency Integration Technology, 2009. RFIT 2009. IEEE International Symposium on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-5031-2
Electronic_ISBN :
978-1-4244-5032-9
DOI :
10.1109/RFIT.2009.5383680
