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CSR

BC6145 Datasheet Preview

BC6145 Datasheet

Fully Qualified Single-chip Bluetooth v3.0 System

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Features
6th generation 1-mic CVC audio enhancements
A2DP v1.2 for high-quality mono music streaming
Supports mSBC wideband speech codec
Programmable audio prompts: available from
either EEPROM or a low-cost SPI flash
Bidirectional noise reduction: Hear and Be Heard
Long-tail echo cancellation for low-cost
speakerphones and car-kits
Low power consumption: over 11 hours talk time
from a 120mAhr battery
Advanced multipoint support: enables a headset
(HFP) connection to 2 phones for voice
Multipoint A2DP streaming: enables a mono
headset (A2DP) connection to 2 A2DP source
devices for music playback
Secure simple pairing, CSR's proximity pairing
and CSR's proximity connection
64MIPS Kalimba DSP coprocessor
HFP v1.5 and HSP v1.2.
Integrated linear and switch-mode regulators
150mA lithium battery charger, with fast charge
and external boost charge for a total 240mA
High-quality mono codec with 95dB SNR DAC
48-lead 7 x 7 x 0.9mm, 0.5mm pitch QFN, pin
compatible with BC6140™ QFN and
BC6130™ QFN
Green (RoHS compliant and no antimony or
halogenated flame retardants)
General Description
BlueCore® BC6145™ QFN is a low-cost fully-featured
ROM IC solution for Bluetooth mono headsets with
extremely low power consumption. The BC6145 QFN
ensures increased speech clarity and improves
intelligibility through spectral enhancement, with the
bidirectional noise reduction Hear and Be Heard
feature.
BC6145 QFN reduces the number of external
components required, minimising production costs. It
includes a Bluetooth radio, baseband, Kalimba DSP,
DAC/ADC, switch-mode power supply and battery
charger in a QFN package for low-cost designs.
The Kalimba DSP coprocessor supports enhanced
audio applications. A2DP streaming enables music
playback on a mono headset.
_äìÉ`çêÉ=_`SNQR»=nck
1-mic CVC Mono Headset Solution
Advanced Echo and Noise Cancellation
Fully Qualified Single-chip
Bluetooth® v3.0 System
Production Information
BC6145A04
Issue 2
Applications
BC6145 QFN DSP mono headset solution
Low-cost speakerphones and car-kits
BC6145 QFN includes CVC single-microphone echo
and noise reduction, which reduces headset echo
enabling the headset-user to be heard more clearly. A
low-power wind noise reduction feature improves
intelligibility in windy environments.
BC6145 QFN supports secure simple pairing which
simplifies the pairing process and makes it easier to
use a Bluetooth headset.
The device includes auto-calibration and BIST
routines to simplify development, type approval and
production test.
See CSR Glossary at www.csrsupport.com.
XTAL
RF IN
RF OUT
Speaker
1
Microphone
1
2.4GHz
Radio
ROM
MCU
Kalimba
DSP
RAM
I2C EEPROM
UART
I/O PIO
SPI Flash
Battery Charger
CS-204118-DSP2
Production Information
© Cambridge Silicon Radio Limited 2010
This Material is Subject to CSR's Non-disclosure Agreement
Page 1 of 69




CSR

BC6145 Datasheet Preview

BC6145 Datasheet

Fully Qualified Single-chip Bluetooth v3.0 System

No Preview Available !

Device Details
Device Details
Radio
Kalimba DSP
Common TX/RX terminal simplifies external
Very low-power Kalimba DSP coprocessor,
matching; eliminates external antenna switch
64MIPS, 24-bit fixed point core
Bluetooth v3.0 specification compliant
Single-cycle MAC; 24 x 24-bit multiply and 56-bit
Transmitter
accumulator
Separate program memory and dual data memory
8.5dBm RF transmit power with level control from Program memory cache when executing from ROM
on-chip 6-bit DAC over a dynamic range typically
>30dB
Audio Codec
Class 2 and Class 3 support without the need for an 16-bit resolution mono codec
external power amplifier or TX/RX switch
Integrated amplifiers for driving a 16Ω speaker; no
Receiver
need for external components
Support for single-ended speaker termination and
Receiver sensitivity of -91dBm
line output
Integrated channel filters
Integrated low-noise microphone bias
Digital demodulator for improved sensitivity and co- Digital enhancements to add bass cut and side tone
channel rejection
Analogue enhancements to support single-ended
Real-time digitised RSSI available on HCI interface
speaker drive capability and reference availability
Fast AGC for enhanced dynamic range
Physical Interfaces
Synthesiser
Synchronous serial interface for system debugging
Fully integrated synthesiser requires no external
VCO, varactor diode, resonator or loop filter
Compatible with crystals 16MHz to 26MHz
Baseband and Software
I²C compatible interface communicates with an
external EEPROM which contains all of the device
configuration (PS Keys)
Synchronous serial interface communicates with an
external SPI flash device, which can store
Support for Bluetooth v3.0 specification when using
updated configuration as described in the
programmable audio prompts
UART interface with data rates up to 3Mbits/s
BC6145 QFN software release note, see
www.csrsupport.com
Auxiliary Features
Internal ROM
BIST minimises production test time
48KB of internal RAM, enables full-speed data
Crystal oscillator with built-in digital trimming
transfer, mixed voice/data and full piconet support Device can run in low power modes from an external
Logic for FEC, HEC, access code correlation,
32.768kHz clock signal
CRC, demodulation, encryption bit stream
Programmable audio prompts
generation, whitening and transmit pulse shaping Power management includes digital shutdown, and
Transcoders for A-law, µ-law and linear voice from
host and A-law, µ-law and CVSD voice over air
wake up commands with an integrated low power
oscillator for ultra low power Park/Sniff/Hold mode
Configurable mono headset ROM software to set- Integrated regulators: 1.5V output from 1.7V to 2.8V
up headset features and user interface
input and 1.9V output from 2.7V to 5.5V input
HFP v1.5 and HSP v1.2
Integrated high-efficiency switch-mode regulator;
Secure simple pairing
1.5V output from 2.2V to 4.4V input
CSR's proximity pairing (headset-initiated pairing) Power-on-reset cell detects low supply voltage
Supports mSBC wideband speech decoder
Arbitrary sequencing of power supplies permitted
Advanced multipoint support, enables a headset to 10-bit ADC
connect to 2 mobile phones or 1 mobile phone and Battery charger with programmable current, 20mA
a VoIP dongle
to 150mA for lithium ion/polymer battery. Supports
DSP-based 6th generation 1-mic CVC echo and
noise cancellation for effective noise cancellation
external boost charge for up to a total of 240mA fast
charge current.
under all conditions
2 LED drivers with faders
Bidirectional noise reduction ensures increased
speech clarity in preparation for improving
Package Option
intelligibility through spectral enhancement for the 48-lead 7 x 7 x 0.9mm, 0.5mm pitch QFN
user and the person they are speaking to
CS-204118-DSP2
Production Information
© Cambridge Silicon Radio Limited 2010
This Material is Subject to CSR's Non-disclosure Agreement
Page 2 of 69


Part Number BC6145
Description Fully Qualified Single-chip Bluetooth v3.0 System
Maker CSR
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BC6145 Datasheet PDF






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