Stereo PA Creates 3D Audio On Mobile Phones

Cranking out 1.2W per channel of continuous average power into 8Ω loads, the TS4997 stereo power amplifier (PA) weaves 3D audio effects over the stereo speaker outputs to add a surround-sound feel to MP3 and video files. The device operates from a 5V supply, however it can operate from supplies as low as 2.7V. It specifies a PSRR of 85 dB and a SNR of 106 dB (A). Additionally, the PA integrates pop-and-click suppression. Available now in a 4 mm x 4 mm QFN16 package with a 0.65-mm pad pitch, price is $1.20 each/1,000. STMICROELECTRONICS, Lexington, MA. (888) 787-3550.