Specification
Radio
- Common TX/RX terminals simplifies external matching; eliminates external antenna switch
- BIST minimises production test time. No external trimming is required in production
- Full RF reference designs are available
- Bluetooth® v1.2 specification compliant
Transmitter
- +6dBm RF transmit power with level control from on-chip 6-bit DAC over a dynamic range >30dB
- Class2 and Class3 support without the need for an external power amplifier or TX/RX switch
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
Synthesiser
- Fully integrated synthesizer 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 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 either sinusoidal or logic level signals
Auxiliary features
- Crystal oscillator with built-in digital trimming
- Power management includes digital shut down and wake up commands with an integrated low power oscillator for ultra-low Park/Sniff/Hold mode
- 'Clock request' output to control an external clock source
- Device can run in low power modes from an external 32kHz clock signal Auto Baud Rate setting for different TCXO frequencies
- Auto baud rate setting for different TCXO frequencies
- On-chip linear regulator, producing 1.8V output from 2.2-5.6V input
- Power-on-reset cell detects low supply voltage
- Arbitrary sequencing of power supplies is permitted
Baseband and software
- Internal programmed 4Mbit ROM for complete system solution
- 32kbyte on-chip RAM allows full speed Bluetooth data transfer, mixed voice and data, plus full 7-slave Piconet operation
- Dedicated logic for forward error correction, header error control, access code correlation, demodulation, cyclic redundancy check, encryption bit stream generation, whitening and transmit pulse shaping. Supports all Bluetooth 1.2 features including eSCO
- 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, or optionally a full speed USB interface supports OHCI and UHCI host interfaces; compliant with USB v2.0
- Synchronous bi-directional serial programmable audio interface
Bluetooth stack running on internal microcontroller
- CSR's Bluetooth protocol stack runs on-chip in a variety of configurations:
- Standard HCI (UART or USB)
- Fully embedded to RFCOMM
- Customer specific builds with embedded application code
Package options
- 42-ball CSP 3.8x3.4mm (BlueCore™3-ROM)
- 84-ball VFBGA 6x6mm (BlueCore™3-ROM)