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Headset and headphone applications

BC6130 and BC6140

These two feature-rich solutions for mono Bluetooth headsets are pin compatible, making it easy to create a headset product range from a single platform design. QFN packaged devices are also pin compatible with the CSR's previous low cost solution, BlueVox2, making it possible to create upgraded headset products without requalification.

BC6130 extends the performance and cost effectiveness of CSR's market-leading BlueVox2, which introduced a feature-rich mono headset capability at lower price, and with smaller size, lower power consumption and enhanced audio quality. The new device adds Proximity Pairing, improved Multipoint support, and the ability to provide programmable audio prompts to help users.

BC6130 key features

• Bluetooth v2.1 + EDR compliant
• Support for Proximity Pairing
• Faster application code
• Improved Multipoint
• Programmable audio prompts
• AuriStream support

RF performance

• 7.5dBm transmit, -90dBm receive

Packaging

• QFN 48-lead 7x7mm 0.5mm pitch
• Pin compatible with BC6140 (QFN only)

BC6140 builds on BC6130's capaibility by adding a DSP core and CSR’s new single-microphone CVC 5.0 algorithm suite. The algorthms improve far-end echo and noise suppression, and introduce brand new near-end audio enhancements - plus packet loss and bit error concealment support for improving audio experience in noisy environments.

BC6140 key features

All BC6130 features plus single-microphone audio enhancement using fifth-generation CVC algorithms, including:

• Near end signal processing
• Packet loss and bit error concealment
• Far end signal processing

Power consumption (incl. single-mic CVC)

• 12.5mA HV3 packets, 10.9mA 2EV3 packets

RF performance

• 7.5dBm transmit, -90dBm receive

Packaging

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

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Echo/Noise Suppression
CSR's solution for a high-end mono Bluetooth headset with CVC (Clear Voice Capture software) performing echo and Noise Suppression. All the elements needed to create a headset with supreme audio quality is included in the  BCVC-SDS-1A  Solution Development System (SDS).  It provides a state-of-the-art solution that can be put into production as it is, or adapted to meet your audio quality needs.

Key features include:

• a single-chip solution with integrated CODEC, and DSP (BlueCore3-Multimedia external)
• v4 of CSR's established interoperable headset application software
• CVC® (Clear Voice Capture software) v2.7.5 providing configurable echo and Noise Suppression
• CVC also allows very close spacing of microphone and speaker
• support for eSCO (to allow the retransmission of corrupted voice data)
• configurable HMI  including multi-colour LED support
• side tone generation for enhanced user experience
• BlueVOX1 CVC Solution Development System that includes BlueVOX1 CVC Software Development Kit (SDK), full reference design, development board, source code, interop results and user guide.

More information: http://www.csrsupport.com/cvc (note that you need to register on CSR's support site to see some information - call your local office if you have any problems)

Note: CSR is continually updating its example designs: there may be newer variants available, call your local CSR office to ensure you have the latest information.

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BlueTunes ROM
BlueTunes ROM is a groundbreaking device that slashes the cost of building advanced Bluetooth stereo wireless headphones for music and audio applications. Integrating DSP and RISC processors, stereo CODEC, Bluetooth radio and battery charger - the ROM-based chip reduces the electronic bill of materials to the lowest in the market.

CSR's design provides a fast path to market for a highly-desirable accessory for mobile handsets and media players - opening up major growth opportunity for OEMs/ODMs. Application flexibility is also built in and the design supports:

• SBC decoding, and optionally MP3* for improved audio quality
• Configurable 5 band EQ to improve end-user experience
• Portable video/TV applications by eliminating 'lip-sync' problems when wirelessly listening to sound tracks - thanks to CSR's FastStream CODEC
• Seamless switching between wireless music playback and voice calls
• High-end echo and noise reduction, allowing users to be heard clearly in noisy environments (single mic or optionally dual mic implementations)
• Higher-quality Bluetooth headset connections via CSR's optional AuriStream CODEC

Find out more about the BlueTunes ROM, or call your local CSR office to discuss the technology.

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Analogue Audio Dongle v1
This example Bluetooth design provides a very cost effective and easy to use solution to allow remote stereo headphones/speakers to be linked wirelessly to a hi-fi or music player. It is available free to purchasers of the appropriate development tools. Key features include:

1. based on highly integrated BlueCore3-Multimedia device with Bluetooth radio, baseband, programmable microcontroller and DSP
2. low power consumption: dissipates <95mW when streaming audio
3. no battery needed when used with many MP3 players - solution can run from the MP3 player power out port
4. 3.5mm audio input/output for portable music players
5. phono audio input/output for home hi-fi adaptors
6. internal stereo A/D converters for lowest possible cost
7. compatible with an external CODEC for hi-fi quality sound
8. full hardware example design available
9. full source code supplied with the BlueLab SDK
10. extensively tested with many different Bluetooth stereo headphone solutions

More information: https://www.csrsupport.com/AnalogueAudioAdaptor (note that you need to register on CSR's support site to see some information - call your local office if you have any problems)

Note: CSR is continually updating its example designs: there may be newer variants available, call your local CSR office to ensure you have the latest information.

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Voice Dongle
This example Bluetooth design provides a very cost effective and easy to use solution to support the connection of a headset accessory on a PC, for VoIP calls - available free to purchasers of the Voice Dongle Solution Development System (VD-SDS-1A). Based on the DSP-equipped BlueCore3-Multimedia External, the design is the first Bluetooth VoIP USB dongle to offer a 'no software' solution: simply plug in the dongle, and press the pairing button to pair with the headset, and the link is running instantly and able to take a call.

Key features include:

• Bluetooth function based on highly-integrated single chip with DSP, linear regulator and audio CODEC
• fully interoperability tested application software with ability to automatically pair with any commercially-available Bluetooth headset, and automatically connect to the PC without installation of PC software
• full support for HFP/HSP connection and audio connection management, HID keyboard and call management
• configurable HMI
• supports 8 kHz, 16-bit mono audio
• development System includes Voice Dongle Software Development Kit (SDK), full reference design, development board, source code, interoperability test results and user guide.

More information: https://www.csrsupport.com/AudioSolutions (note that you need to register on CSR's support site to see some information - call your local office if you have any problems)

Note: CSR is continually updating its example designs: there may be newer variants available, call your local CSR office to ensure you have the latest information.

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