Specification
Radio
- Common Tx/Rx terminal simplifies external matching; eliminates external antenna switch
- BIST minimises production test time. No external trimming is required in production
- Full RF reference designs available
- Bluetooth® v2.0+EDR specification compliant (v2.1 upgradeable)
Transmitter
- +6dBm RF transmit power with level control from on-chip 6-bit DAC over a dynamic range >30dB
- Class 2 and Class 3 support without the need for an external power amplifier or Tx/Rx switch
- Supports Π/4 DQPSK (2Mbps) and 8DPSK (3Mbps) modulation
Receiver
- Integrated channel filters
- Digital demodulator for improved sensitivity and co-channel rejection
- Real time digitised RSSI available on HCI interface
- Fast AGC for enhanced dynamic range
- Supports Π/4 DQPSK and 8DPSK modulation
- Channel classification
Synthesiser
- Fully integrated synthesiser requires no external VCO, varactor diode, resonator or loop filter
- Compatible with crystals between 8 and 32MHz (in multiples of 250kHz) or an external clock
- 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
Auxiliary features
- Crystal oscillator with built-in digital trimming
- Power management includes digital shut down, wake up commands with an integrated low power oscillator for ultra-low power Park/Sniff/Hold mode
- 'Clock request' output to control an external clock
- On-chip linear regulator; 1.8V output from a 2.2 4.2V input
- Can run in low power mode from external 32kHz clock signal
- Auto baud rate setting for different TCXO frequencies
- Power-on-reset cell detects low supply voltage
- Arbitrary power supply sequencing permitted
- 8-bit ADC available to applications
Baseband and software
- External 8Mbit Flash for complete system solution
- Internal 48kbyte RAM, allows full speed data transfer, mixed voice and data, and full Piconet operation, including all medium rate preset 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 v1.2 features including eSCO and AFH
- 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 4Mbaud for system debugging
- UART interface with programmable baud rate up to 1.5Mbaud with an optional bypass mode
- Full speed USB v2.0 interface supports OHCI and UHCI host interfaces
- Synchronous bi-directional serial programmable audio interface
- Optional I2C™ compatible interface
- Optional co-existence interfaces
Bluetooth stack
- CSR's Bluetooth protocol stack runs on the on-chip microcontroller in a variety of configurations:
- Standard HCI (UART or USB)
- Fully embedded RFCOMM
- Customised builds with embedded application code
Package options
- 96-ball VFBGA, 8x8mm
- 96-ball VFBGA, 6x6mm