BlueCore5-Multimedia External

Overview

Specification

Bluetooth® radio

  1. Common TX/RX terminal simplifies external matching; eliminates external antenna switch
  2. BIST minimises production test time
  3. Bluetooth v2.0+EDR specification compliant

Transmitter

  1. +6.5dBm RF transmit power with level control from on-chip 6-bit DAC over a dynamic range >30dB
  2. Class 2 and Class 3 support without the need for an external power amplifier or TX/RX switch

Receiver

  1. Integrated channel filters
  2. Digital demodulator for improved sensitivity and co-channel rejection
  3. Real time digitised RSSI available on HCI interface
  4. Fast AGC for enhanced dynamic range
  5. -90dBm receive sensitivity

Synthesiser

  1. Fully integrated synthesiser requires no external VCO, varactor diode, resonator or loop filter
  2. Compatible with crystals between 8 and 32MHz (in multiples of 250kHz) or an external clock
  3. Accepts 7.68, 14.44, 15.36, 16.2, 16.8, 19.2, 19.44, 19.68, 19.8 and 38.4MHz TCXO frequencies for GSM and CDMA devices with sinusoidal or logic level signals

Baseband and software

  1. External Flash extendable to 32Mbit
  2. Internal 48kbyte RAM, allows full speed data transfer, mixed voice/data and full piconet support
  3. Logic for forward error correction, header error control, access code correlation, CRC, demodulation, encryption bit stream generation, whitening and transmit pulse shaping
  4. Transcoders for A-law, µ-law and linear voice from host and A-law, µ-law and CVSD voice over air

Physical interfaces

  • Synchronous serial interface up to 4M data rate
  • Optional I2C compatible interface
  • UART interfaces with programmable data rate up to 3M with an optional bypass mode
  • Full speed USB v1.1 interface
  • Bi-directional serial programmable audio interface supporting PCM, I2S and SPDIF formats
  • Two LED drivers with faders

Kalimba DSP

  1. Very low power Kalimba DSP co-processor, 64MIPS, 24-bit fixed point core
  2. SBC decode takes approximately 4mW power consumption while streaming music
  3. Single cycle MAC; 24 x 24-bit multiply and 56-bit accumulator
  4. 32-bit instruction word, dual 24-bit data memory
  5. 24kbyte (6kword) program RAM, 36Kbyte + 48kbyte (16kword + 12kword) data RAM
  6. 64words x 32-bit program memory cache when executing from Flash or SDRAM

Stereo audio CODEC

  1. 16-bit internal stereo CODEC
  2. Dual ADC and DAC for stereo audio
  3. Integrated amplifiers for driving 16Ω speakers; no need for external components
  4. Support for single-ended speaker termination and line output
  5. Integrated low-noise microphone bias
  6. Standard sample rates of 8kHz, 11.025kHz, 16kHz, 22.05kHz, 32kHz, 44.1kHz and 48kHz (DAC only)
  7. -95dB SNR, 0.007% SNR for DAC

Auxiliary features

  1. User space on processor for customer applications
  2. Crystal oscillator with built-in digital trimming
  3. Power management includes digital shutdown and wake up commands with an integrated low power oscillator for ultra-low power Park/Sniff/Hold mode
  4. Clock request output to control external clock
  5. On-chip regulators: 1.5V output from 1.8V to 2.7V
  6. input and 1.8V output from 2.7V to 4.5V input
  7. On-chip high-efficiency switched-mode regulator; 1.8V output from 2.7V to 4.4V input
  8. Power-on-reset cell detects low supply voltage
  9. 10-bit ADC and 8-bit DAC available to applications
  10. On-chip charger for lithium ion/polymer batteries

Bluetooth stack
CSR's Bluetooth Protocol Stack runs on the on-chip MCU in a variety of configurations:

  • Standard HCI (UART or USB)
  • Audio CODEC echo-noise cancellation algorithms running on the DSP

Package options

  • TFBGA, 8 x 8 x 1.2mm, 0.5mm pitch