BC41B143A-ds-003Pc
Advance Information
© Cambridge Silicon Radio Limited 2005
Page 8 of 94
Key Features
2
Key Features
Radio
Direct 50
Ω connection to a common TX/RX antenna
Bluetooth v2.0+EDR specification compliant
Extensive built-in self-test minimises production test
time
No external trimming is required in production
Antenna matching and filtering within IC
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 varactor diode, resonator or loop filter
Compatible with crystals between 8 and 32MHz (in
multiples of 250kHz) or an external clock
Accepts 7.68, 14.4, 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 shutdown, and
wake up commands with an integrated low power
oscillator for ultra low Park/Sniff/Hold mode
Clock request output to control external clock
On-chip linear regulator, producing 1.8V output from
2.2V to 4.2V input
Power on reset cell detects low supply voltage
Arbitrary power supply sequencing permitted
8-bit ADC and DAC available to application
Baseband and Software
Internal programmed 4Mbit ROM for complete
system solution
48kbyte on-chip RAM allows full speed Bluetooth
data transfer, mixed voice and data, plus full seven
slave piconet operation
Logic for forward error correction, header error
control, access code correlation, demodulation,
CRC, encryption bitstream generation, whitening
and transmit pulse shaping
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 4M baud for
system debugging
UART interface with programmable baud rate up to
3M baud with an optional bypass mode
Full speed USB interface supports OHCI and UHCI
host interfaces. Compliant with USB v2.0
Synchronous bi-directional serial programmable
audio interface
Optional I2C™ compatible interface
Bluetooth Stack
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
96-ball LFBGA 10 x 10 x 1.6mm 0.8mm pitch
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