NXP's new audio chip pumps up the volume for mobile device speakers - Engadget

http://m.engadget.com/2012/07/17/nxps-new-audio-chip-pumps-up-the-volume-for-mobile-device-speak/?icid=eng_latest_art

/ Dutch company NXP NFC near filed communications new audio chip improve sound quality micro-speakers mobile devices smartphones tablets TFA9887 integrated circuit NXP's CoolFlux audio DSP class-D amplifier current sensing DC-to-DC converte boost output level micro-speakers five times 2.6W RMS driver Class-D amplifiers highly efficient strong clear signal current sensing feedback optimize power delivery /