Wolfson WM2200带环境噪音消除CODEC解决方案
Wolfson公司的WM2200是低功耗具有增强的Wolfson myZoneTM环境噪音消除（ANC）的CODEC，为近端和远端用户提供了增强的语音质量。WM2200可以直接驱动耳机放大器，包括myZoneTM接收和发送通路的噪音消除和回声消除（AEC）算法，提供风噪音，电话机侧音和其它可编程的滤波器，多达6个模拟或数字麦克风，单端或差分模拟麦克风输入，AB类或W模式工作，主要用在移动手机。本文介绍了WM2200主要特性，方框图以及手持机模式和扬声器模式应用框图。
Low Power CODEC with Enhanced Wolfson myZoneTM Ambient Noise Cancellation
The WM2200 is a low power mobile CODEC with enhanced Wolfson myZoneTM Ambient Noise Cancellation (ANC). It provides enhanced voice communication quality for both near and far end handset users.
WM2200 drives the receiver earpiece speaker directly, includes myZoneTM receive path (RX) and transmit path (TX) Noise Cancellation and Acoustic Echo Cancellation (AEC) algorithms, and can be used in speakerphone mode using a PDM input speaker amplifier chip.
The device can be used for both narrowband and wideband voice calls and can be coupled with analogue and digital microphones. Baseband processors with analogue or digital voice RX and TX signals are supported.
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