LG E900 Service Manual page 51

3. TECHNICAL BRIEF
WM9093 audio interface
The WM909 is a fully integrated audio subsystem designed for portable handheld applications such as cellular
phones. The WM909 combines 650mW at .6V mono E2S class D amplifier, 40mW class AB earpiece amplifier,
4mW/channel stereo ground reference headphone amplifiers, volume control, and mixing circuitry into a single
device. The WM909 features a fully differential mono input, and two single-ended stereo inputs.
Figure. Audio Subsystem (WM9093)
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