Features :
1.Operation voltage from 2.8 V to 5.2 V
2. Bluetooth 4.1 + EDR compliant
3.-90 dBm sensitivity for 1 Mbps mode and 5 dBm transmit power
4.-107 dBm sensitivity FM receiver
5.1-wire or 4-wires SD-card interface
6.USB 2.0 host and device
7.Integrated 90 dB SNR ADC and stereo DAC
8.I2C,SPI and UART interface
9.Bluetooth A2DP, AVRCP and HFP profile
10.SSOP24, SSOP28, QFN48 , QFN32 package