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We will talk about the main audio chips in this lesson

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The main audio chip is also called the big audio

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The common code names in the circuit are Codec or CDC

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It is mainly responsible for processing the microphone signal,

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the earpiece signal, the earphone signal

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The microphone collects the sound,

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and the earpiece is a component that can hear the sound

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without turning on the hands-free when making a call,

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also called a small speaker

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For example, the one shown in the picture on the right is a small audio

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The audio chips of Oppo and Vivo's early mobile phone using the MTK platform

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are integrated inside the power supply

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At present, Xiaomi, Huawei, Oppo, and Vivo mostly use independent audio chips

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Qualcomm platform commonly used WCD series chips

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For example, the picture on the right is WCD9340

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Hi6403 and Hi6405 audio chips are commonly used in Hisilicon Huawei series

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Some Hisilicon platform use power integrated audio,

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such as Hi6555

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MediaTek platforms commonly integrate audio chip inside the power supply

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The picture on the right is from the WCD Qualcomm platform

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This is Hisilicon Hi6403

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This Hi6555 is the power chip integrated with big audio

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This is MTK,

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most of them integrate audio chips inside the power supply

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Ok, that's it for this lesson