EE Product News

Class D Audio Amp Extends Battery Life

With about two-thirds lower quiescent current and 80% lower noise floor than comparable devices, the TPA2012D2 Class-D audio amplifier delivers up to 2.1W while operating from a 3.3V supply and consuming 6 mA. The device specifies an A-weighted noise floor of 27 ┬ÁVRMS, well below the level detectable by the human ear. It requires just two external components for correct operation and includes four gain select options and independent-channel shutdown. The device is available in a 4 mm x 4 mm TQFN package and is sampling in a 2 mm x 2 mm WCSP. Production volumes of the WCSP will be available in March. Prices for TQFN and WCSP devices are $0.95 and $1.05 each/1,000, respectively. TEXAS INSTRUMENTS INC., Dallas, TX. (800) 477-8924.


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