Title :
A 240W Monolithic Class-D Audio Amplifier Output Stage
Author :
Nyboe, F. ; Kaya, Cigdem ; Risbo, L. ; Andreani, Pietro
Author_Institution :
Texas Instruments, Lyngby
Abstract :
A single-channel class-D audio amplifier output stage outputs 240W undipped into 4Omega 0.1% open-loop THD+N allows using the device in a fully-digital audio signal path with no feedback. The output current capability is plusmn18A and the part is fabricated in a 0.4mum/1.8mum high-voltage BiCMOS process. Over-current sensing protects the output from short circuits
Keywords :
BiCMOS integrated circuits; audio-frequency amplifiers; overcurrent protection; 0.4 micron; 1.8 micron; 240 W; 4 ohm; BiCMOS process; class-D audio amplifier; digital audio signal path; over-current sensing; Bridges; Current measurement; Demodulation; Digital filters; Gain measurement; Loudspeakers; Power filters; Power measurement; Pulse width modulation; Semiconductor device measurement;
Conference_Titel :
Solid-State Circuits Conference, 2006. ISSCC 2006. Digest of Technical Papers. IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0079-1
DOI :
10.1109/ISSCC.2006.1696183
