Title :
Fully Integrated Headphone Detector
Author :
Guilherme, David ; Caldeira, Nuno Vasco ; Risques, João
Author_Institution :
Chipidea-Microelectron. S.A., Porto Salvo
Abstract :
A CMOS fully integrated headphone detector is presented in this paper. The circuit operation does not require any extra pin besides the output driver pins. It has detection capabilities for stereo loads, and works both in normal audio reproduction conditions and during the amplifier power-down mode. The power consumption of less than 9 muW, making the circuit highly suitable for portable audio equipment.
Keywords :
CMOS integrated circuits; audio equipment; headphones; CMOS fully integrated headphone detector; amplifier power-down mode; audio reproduction; output driver pins; portable audio equipment; power consumption; stereo load detection; Battery management systems; Codecs; Detectors; Driver circuits; Energy management; Feeds; Headphones; Impedance; Lifting equipment; Voltage;
Conference_Titel :
Electronics, Circuits and Systems, 2006. ICECS '06. 13th IEEE International Conference on
Conference_Location :
Nice
Print_ISBN :
1-4244-0395-2
Electronic_ISBN :
1-4244-0395-2
DOI :
10.1109/ICECS.2006.379780
