Bluetooth speaker chip

Peripheral and Interfaces
1. Support low power VAD application, such as  KWS and customized offline voice commands  recognition;
2. Three multi-function 32-bit timers, support  Capture and PWM mode；
3. SPI Master/slave interface;
4. Two SD Card Host controller;
5. Two Hardware IIC support 400K;
6.Hardware Quad-decoder;
7. IR controller;  Watch Dog;
8. SPDIF receiver;
9. Three full-duplex UART;
10. Audio interface IIS Master/Slave;
11. Sixteen Channels 10-bit SARADC;
12. Build in PMU, such as buck/LDO; Support  dual-buck low power application and support  single-buck low cost application；
13. VUSB for charger, wakeup, communication,  reset functions;
14. Support 4.35V/4.2V high voltage battery;