Key Features
BC41B143A-ds-002Pd
This material is subject to CSR’s non-disclosure agreement
Production Information
© Cambridge Silicon Radio Limited 2005
Page 8 of 89
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Key Features
Radio
! Common TX/RX terminals simplify external
matching and eliminates external antenna switch
! BIST minimises production test time. No external
trimming is required in production
! Full RF reference designs are available
! Bluetooth v2.0 + EDR 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
! Class 1 support using external power amplifier, with
RF power controlled by an internal 8-bit DAC
! Supports 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 DQPSK and 8DPSK modulation
! Channel classification
Synthesiser
! Fully integrated synthesizer requires no external
VCO varactor diode, resonator or loop filter
! Compatible with crystals between 8 and 40MHz (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 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
Auxiliary Features (continued)
! Device can run in low power modes from an
external 32KHz clock signal
! Auto Baud Rate setting for different TCXO
frequencies
! On-chip linear regulator, producing 1.8V output
from 2.2-4.2V input
! Power-on-reset cell detects low supply voltage
Baseband and Software
! Internal 48-KByte 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 v2.0 + EDR 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
3Mbits/s 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 interfaces
! Optional 802.11 co-existence interfaces
Bluetooth Stack
CSR’s Bluetooth protocol stack runs on the on-chip
MCU in a variety of configurations:
! Standard HCI (UART or USB)
! Customised builds with embedded application code
Package Options
! 47-ball CSP 3.8 x 4.0 x 0.7mm