0 Preface/Foreword
常用词汇：
baseband and radio for intentive stereo, mono, or TWS （AiroStereo） audio application.
baseband:基带
TWS：AiroStereo
Audio Transparency：AiroThru
EVK: Evaluation Kit
Airoha configuration tool：
TCB：Airoha Test Control Board
Airoha Mass Production Tool：
ANC: Active Noise Cancellation
SDIO: Secure Digital Input Output，安全数字输入输出
AB157x series chipsets:
- AB1577S
- AB1577AM
- AB1571
- AB1571D
Benefits:
- a flexible power supply block, including USB 5V, DC 5V adapter jack, a battery +/- connector.
- High integration of a variety of interfaces
- Convenient audio interfaces
- user-friendly interfaces
Target application：
- Stereo headset / headphones
- TWS headsets
- ANC headsets and headphones
1 Usage
1.1 EVB板示意图
