Features

• Compliant with Bluetooth Specification v.4.1 (EDR) in 2.4 GHz ISM band
• It supports the following profiles :  HFP 1.6  HSP 1.1  A2DP 1.2  AVRCP 1.5  SPP 1.0  PBAP 1.0
• HFP 1.6
• HSP 1.1
• A2DP 1.2
• AVRCP 1.5
• SPP 1.0
• PBAP 1.0
• 16MHz main clock input
• Built-in internal ROM for program memory
• Support to connect to two hosts ( phones, tablets…) with HFP or A2DP profiles simultaneously
• Adaptive Frequency Hopping (AFH) avoids occupied RF channels
• Fast Connection supported RF Hardware
• Fully Bluetooth 4.1 (EDR) system in 2.4 GHz ISM band
• Combined TX/RX RF terminal simplifies external matching and reduces external antenna switches
• Max. +4dBm output power with 20 dB level control from register control
• Built-in T/R switch for Class 2/3 application
• To avoid temperature variation, temperature sensor with temperature calibration is utilized into bias current and gain control
• Fully integrated synthesizer has been created. There requires no external VCO, varactor diode, resonator and loop filter
• Crystal oscillation with built-in digital trimming for temperature/process variations
• Supports 64 kb/s A-Law or µ-Law PCM format, or CVSD (Continuous Variable Slope Delta Modulation) for SCO channel operation
• Noise suppression
• Echo suppression
• SBC and optional AAC decoding
• Packet loss concealment
• Build-in four languages (Chinese/ English/ Spanish/ French) voice prompts and 20 events for each one (This function can be set up in UI tool.)
• 20 bit DAC and 16 bit ADC codec
• 98dB SNR DAC playback
• Built-in Lithium-ion battery charger (up to 350mA)
• Integrate 3V, 1.8V configurable switching regulator and LDO
• Built-in ADC for battery monitor and voltage sense
• A line-in port for external audio input
• Two LED drivers
• High speed HCI-UART (Universal Asynchronous Receiver Transmitter) interface (up to 921600bps)
• 5 x 6.5 mm2 48QFN package

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