We are pleased to announce that as of August 13, 2015, Qualcomm Global Trading Pte. Ltd., a subsidiary of Qualcomm Incorporated, has completed its acquisition of CSR plc. For more information, please see the press release .

BlueCore® BC6140™

BC6140™ is a Bluetooth® chip for low-cost mono headsets that provides high quality 1-mic noise reduction, echo cancellation and speech intelligibility enhancements.

BC6140 also supports user convenience features such as audio prompts, advanced multipoint and proximity pairing. BC6140 builds on BC6130™’s functionality adding CSR’s high performance on-chip DSP, support for cVc® 5.0 noise reduction, packet and bit error concealment, which restores audio quality in difficult RF environments. BC6140 is pin compatible with BC6130™.

Get this product


Overview

Radio

  • Common TX/RX terminal simplifies external matching; eliminates external antenna switch
  • No external trimming is required in production
  • Bluetooth v3.0 specification compliant

Transmitter

  • 8.5dBm RF transmit power with level control from on-chip 6-bit DAC over a dynamic range typically >30dB
  • Class 2 and Class 3 support without the need for an external power amplifier or TX/RX switch

Receiver

  • -90dBm receive sensitivity
  • 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 16 and 26MHz

Baseband and software

  • Internal ROM
  • 48KB of internal RAM, enables full-speed data transfer, mixed voice/data and full piconet support
  • Logic for forward error correction, header error control, access code correlation, CRC, demodulation, encryption bit stream 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
  • Configurable mono headset ROM software to setup headset features and user interface
  • Support for HFP v1.5 (including three-way calling) and HSP v1.1
  • Support for Bluetooth v3.0 specification when using updated configuration, see www.csrsupport.com
  • Proximity pairing (headset-initiated pairing)
  • Packet loss and bit error concealment to restore audio quality in difficult RF environments
  • Advanced Multipoint support, enabling the headset to connect to 2 mobile phones or 1 mobile phone and a VoIP dongle
  • DSP based single-microphone cVc echo and noise cancellation is included in the BC6140 for effective noise cancellation under all conditions
  • BC6140 low-cost mono DSP headset solution development kit available, includes example design

Power Consumption

  • Very low power to provide long talk times

RF performance

  • 7.5dBm transmit, -90dBm receive

Packaging

  • QFN 48-lead 7x7mm 0.5mm pitch, pin compatible with BlueVox2™ and BC6130

Kalimba DSP

  • Very low power Kalimba DSP coprocessor, 64MIPS, 24-bit fixed point core
  • Single cycle MAC; 24 x 24-bit multiply and 56-bit accumulator
  • 32-bit instruction word, dual 24-bit data memory
  • 4K x 32-bit program RAM, 8K x 24-bit + 4K x 24-bit data RAM
  • 64 x 32-bit program memory cache when executing from ROM

Audio CODEC

  • 16-bit resolution mono CODEC
  • ADC and DAC
  • Integrated amplifiers for driving 16Ω speakers; no need for external components
  • Support for single-ended speaker termination and line output
  • Integrated low-noise microphone bias
  • Digital enhancements to provide side tone
  • Analogue enhancements to support single-ended speaker drive capability

Physical Interfaces

  • Synchronous serial interface for system debugging
  • I²C compatible interface used to communicate with an external EEPROM which contains all of the device configuration (PS Keys)
  • UART interface with data rates up to 3Mbits/s

Auxiliary Features

  • Crystal oscillator with built-in digital trimming
  • Device can run in low power modes from an external 32.768kHz clock signal
  • Programmable audio prompts
  • Power management includes digital shutdown, and wake up commands with an integrated low power oscillator for ultra low power Park/Sniff/Hold mode
  • On-chip regulators: 1.9V output from 2.7V to 5.5V input
  • On-chip high-efficiency switch-mode regulator; 1.5V output from 2.2V to 4.4V input
  • Power-on-reset cell detects low supply voltage
  • Arbitrary sequencing of power supplies permitted
  • Battery charger with programmable current, 20mA to 150mA for lithium ion/polymer battery
  • 2 LED drivers with faders

Package options

  • QFN 48-lead 7 x 7 x 0.9mm, 0.5mm pitch
  • Boost charge (fast charge) for faster battery charging
  • Low power Wind Noise Reduction
  • Comprehensive development kit available to support product design (includes form-factor representative headset PCB)
  • Very low power consumption with fifth generation 1-mic cVc audio enhancements
  • Superior RF performance for improved range and link reliability
    • 8.5 dBm transmit power
    • -91dBm receive sensitivity
  • Fully qualified single-chip Bluetooth v3.0 system
  • Single-chip mono headset solution with advanced echo and noise cancellation
  • Packet loss and bit error concealment which restores audio quality in difficult RF environments
  • Low power consumption: over 13 hours talk time from a 120mAh battery
  • High-performance cVc 1-mic echo and noise cancellation with selectable low power wind noise reduction feature
  • Support for boost charge proving up to 240mA total charge current
  • Green (RoHS compliant and no antimony or halogenated flame retardants)

 

BlueCore® BC6140™

Bluecore® BC6145™

CSR8610™

CSR8620™

Bluetooth® Version

v3.0

v3.0

v4.0

v4.0

Advanced Multipoint

Yes

Yes

Yes

Yes

cVc® Mics / Generation

1 / 5th

1 / 5th

1 / 6th

2 / 6th

FESI

No

Yes

Yes

Yes

Wideband Speech

No

Yes

Yes

Yes

Wind Noise Reduction

Option

ULP

ULP

ULP

Simple Speech Recognition

No

No

Yes

Yes

Audio Prompts

Simple

Multi

Multi

Multi

Proximity Pairing

Yes

Yes

Yes

Yes

Proximity Connect

No

Yes

Yes

Yes

Smart Apps Connectivity

No

No

Yes

Yes

A2DP Music Streaming

No

Yes

Yes

Yes

Wired Audio Input

No

No

No

No

iOS Battery Status Meter

No

Patch

Yes

Yes

Rapid Charge Support

No

No

Yes

Yes

Talk Time Extension

No

Yes

Yes

Yes


Terms of Supply

Related products