The WM9090 and the WM9010 audio amplifiers offer a low power consumption due to highly efficient headphone and speaker drivers. The WM9090 features a mono Class D speaker driver, Class G capless headphone amplifier, automatic gain control, and two pairs of differential analog inputs, all delivered in a small 20-ball 2.5 x 2.0-mm CSP package. Its on-chip mono Class D speaker amplifier delivers 750 mW into an 8-Ω speaker at less than 1% THD+N, when powered by a 3.7-V battery.
The audio experience is further enhanced by a sub-1-mV dc offset at the headphone outputs for minimal pops and clicks during power up and down sequences. Available in a 12-ball 1.8 x 1.3-mm CSP package, the WM9010 is a highly efficient Class G capless headphone amplifier, which is powered from a single 1.8-V supply and offers substantially longer playback time over many other Class G headphone amplifiers. (Ea/10,000: WM9090, $0.50; WM9010, $0.35 — WM9090, prod qty, now; WM9010, samples now.)
Wolfson Microelectronics , Edinburgh , U.K.
Sales 011-44-131-272-7000
Advertisement
Learn more about Wolfson Microelectronics
