BlueCore6-ROM™

Radio

• Common TX/RX terminal simplifies external matching; eliminates external antenna switch
• No external trimming is required in production
• Bluetooth v2.1 + EDR specification compliant

Transmitter

• 9dBm (0.5mm pitch WLCSP package), 8dBm (QFN package) or 7dBm (Ultrathin WLCSP and WLCSP package) RF transmit power with level control from on-chip 6-bit DAC over a dynamic range >30dB
• Class 1 (0.5mm pitch WLCSP  and QFN package), Class 2 and Class 3 support without the need for an external power amplifier or TX/RX switch

Receiver

• Receiver sensitivity of -90dBm
• 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
• Channel classification for AFH

Synthesiser

• Fully integrated synthesiser requires no external VCO varactor diode, resonator or loop filter
• Compatible with crystals between 16 and 26MHz or an external clock between 12 and 52MHz

Baseband and Software

• CODEC (16, 24, 32, 40 kbps) offers significant power reduction over the CVSD based system when used at both ends of the link
• Internal 48KB RAM, allows full speed data transfer, mixed voice and data, and full piconet operation, including all EDR packet types
• Logic for forward error correction, header error control, access code correlation, CRC, demodulation, encryption bit stream generation, whitening and transmit pulse shaping. Supports all Bluetooth v2.1 + EDR features including eSCO and AFH
• Transcoders for A-law, mu-law and linear voice from host and A-law, μ-law and CVSD voice over air

Auxiliary Features

• Clock request output to control an external clock
• Device can run in low power modes from an external 32768Hz clock signal
• Power management includes digital shutdown, and wake up commands with an integrated low power oscillator for ultra low power Park/Sniff/Hold mode
• Auto Data Rate setting, subject to host interface in use
• On-chip linear regulators:
  • 1.8V output from 2.7V to 5.5V input to power I/O ring (load current 100mA)
  • Low dropout linear regulator producing 1.5V core voltage from 1.8V
• Power-on-reset cell detects low supply voltage
• Arbitrary sequencing of power supplies permitted

Physical Interfaces

• SDIO and CSPI
• SPI interface up to 4Mbaud for system debugging
• UART interface with programmable baud rate up to 4Mbaud
• Bidirectional serial programmable audio interface, supporting PCM and I²S formats

Bluetooth Stack

CSR's Bluetooth protocol stack runs on the on-chip MCU in the following configuration:

• Standard HCI over UART

Package Options

• QFN 40-lead 6 x 6 x 0.6mm, 0.5mm pitch
• WLCSP 51-ball 3.49 x 3.21 x 0.6mm, 0.4mm pitch
• WLCSP 51-bump 3.49 x 3.21 x 0.35mm, 0.4mm pitch
• WLCSP 33-ball 3.21 x 3.49 x 0.6mm, 0.4mm pitch