1.1. Features

 Operation voltage from 2.8 V to 5.2 V

 Bluetooth 4.1 + EDR compliant

 -90 dBm sensitivity for 1 Mbps mode and 5 dBm transmit power

 -107 dBm sensitivity FM receiver

 1-wire or 4-wires SD-card interface

 USB 2.0 host and device

 Integrated 90 dB SNR ADC and stereo DAC

 I2C,SPI and UART interface

 Bluetooth A2DP, AVRCP and HFP profile

 SSOP24, SSOP28, QFN48 , QFN32 package