WM1811G

WM1811G Multi-Channel Audio Hub CODEC for Smartphones DESCRIPTION FEATURES The WM1811G is a highly integrated ultra-low power hi-fi CODEC designed for smartphones and other portable devices rich in multimedia features. An integrated stereo Class D speaker driver and Class W headphone driver minimize power consumption during audio playback. The device requires only two voltage supplies, with all other internal supply rails generated from integrated LDOs. Stereo full duplex asynchronous sample rate conversion and multi-channel digital mixing combined with powerful analogue mixing allow the device to support a huge range of different architectures and use cases. A programmable parametric EQ provides speaker compensation in the digital playback paths. The dynamic range controller can be used in record or playback paths for maintaining a constant signal level, maximizing loudness and protecting speakers against overloading and clipping. A smart digital microphone interface provides power regulation, a low jitter clock output and decimation filters for up to two digital microphones. Microphone activity detection with interrupt is available.Low power jack detection is supported via a dedicated input pin. Impedance sensing and measurement is provided for external accessory / push-button detection. Fully differential internal architecture and on-chip RF noise filters ensure a very high degree of noise immunity. Active ground loop noise rejection and DC offset correction help preve...