Integrated channel filters
Digital demodulator for improved sensitivity and cochannel rejection
Real-time digitised RSSI available on HCI interface
Fast AGC for enhanced dynamic range
Baseband and Software
16Mbit external Flash
48Kbyte internal RAM, allows full-speed data transfer, mixed voice/data and full piconet support
Logic for forward error correction, header error control, access code correlation, CRC,
demodulation, encryption bit stream generation, whitening and transmit pulse shaping
Transcoders for A-law, -law and linear voice from host and A-law, -law and CVSD voice
over air
Physical Interfaces
SPI with clock speeds up to 64MHz in Master mode and 32MHz in Slave mode
I2C master compatible interface
UART interface with programmable data rate up to 3Mbits/s with an optional bypass mode
USB v2.0 interface
Bi-directional serial programmable audio interface supporting PCM, I2S and SPDIF formats
Two LED drivers with faders
Kalimba DSP
Very low power Kalimba DSP co-processor, 64MIPS, 24-bit fixed point core
SBC decode takes approximately 4mW power consumption while streaming music
Single-cycle MAC; 24 x 24-bit multiply and 56-bit accumulator
32-bit instruction word, dual 24-bit data memory
6K x 32-bit program RAM, 16K x 24-bit + 12K x 24- bit data RAM
64-word x 32-bit program memory cache when executing from Flash
Stereo Audio Codec
16-bit internal stereo codec
Dual ADC and DAC for stereo audio
Integrated amplifiers for driving 16speakers; no need for external components
Support for single-ended speaker termination and line output
Integrated low-noise microphone bias
ADC sample rates are 8, 11.025, 16, 22.05, 32 and 44.1kHz
DAC sample rates are 8, 11.025, 12, 16, 22.05, 24, 32, 44.1 and 48kHz
