WM9010

w WM9010 Low Power, Class G Stereo Headphone Driver DESCRIPTION FEATURES The WM9010 is a low power stereo headphone driver designed for mobile handset and portable media player (PMP) applications. Class G amplifier technology is used to achieve high power efficiency and low quiescent current. Stereo analogue inputs accept 1Vrms line level inputs; the Hi-Fi output drivers deliver up to 28mW into a 32Ω load. An integrated charge pump circuit generates split-rail voltage supplies to power the ground-referenced headphone driver. The WM9010 incorporates Wolfson Silent Switch™ technology to provide pop and click suppression whenever the WM9010 is enabled or disabled. The WM9010 is supplied in a 12-pin CSP package. Hi-fi audio headphone drivers (104dB SNR - ‘A’ weighted) Stereo analogue audio inputs Ground-referenced, cap-less headphone outputs Integrated charge pump and oscillator circuits Low quiescent current RF noise suppression Pop and click suppression 12-pin CSP package (1.84 x 1.34 x 0.7mm) APPLICATIONS Mobile Handsets Portable Media Players (PMP) Notebooks / Laptop computers LCD televisions ENA GND VDD RF noise suppression Pop and click suppression INL INR INREF + + HPOUTL HPOUTR Oscillator WM9010 Charge Pump WOLFSON MICROELECTRONICS plc To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews Production Data, February 2011, Rev 4.0 Copyright ©2011 Wolfson Microelectronics plc WM9010 Production Data TABLE OF...