BlueCore™3-ROM CSP

BlueCore™-ROM CSP is a single chip radio and baseband chip for Bluetooth wireless technology 2.4GHz systems. It is implemented in 0.18μ CMOS technology.
The 4Mbit ROM is metal programmable, which enables an eight week turn-around from approval of firmware to production samples.
BlueCore™3-ROM CSP has been designed to reduce the number of external components required, which ensures production costs are minimised.
The device incorporates auto-calibration and built-in self-test (BIST) routines to simplify development, type approval and production test. All hardware and device firmware is fully compliant with the Bluetooth specification v1.2

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
Class 2 and class 3 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 synthesiser requires no external VCO, varator diode or loop filter
Compatible with crystals between 8MHz and 40MHz (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 frquencies for GSM and CDMA devices with either sinusoidal or logic level signals

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 seven 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

Bluetooth Stack Running on an 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