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Cost-effective single-chip solution for stereo _äìÉqìåÉë=olj=píÉêÉç=eÉ~ÇëÉí=pçäìíáçå headset and wireless speaker applications A2DP1.2 and AVRCP1.0 profiles enabled with SBC encoder for streaming audio over Bluetooth MP3 decoder for improved audio quality and High-quality audio 95dB SNR on DAC playback FastStream, CSR’s low-latency codec for video HFP 1.5 (includes 3-way calling) and HSP 1.0 Low-power consumption: over 10 hours of audio Fully-qualified Bluetooth v2.1 + EDR specification system with support for secure simple pairing Best-in-class Bluetooth radio with 7dBm transmit Integrated 1.5V and 1.8V linear regulators 68-lead 8 x 8 x 0.9mm, 0.4mm pitch QFN package Green (RoHS and no antimony or halogenated Development Kit (includes example design) _äìÉ`çêÉ∆RJjìäíáãÉÇá~=olj=nck, the Stereo headset solution with support for echo and _äìÉqìåÉë=olj=nck integrates a Bluetooth radio, baseband, DSP, high-quality audio codec, SMPS, LDOs and a battery charger for minimal BOM, BlueTunes ROM QFN includes as standard cVc single microphone algorithm for echo and noise suppression.
BlueTunes ROM QFN uses advanced DSP features cVc 1-mic provides ful duplex echo cancellation and a for the latest stereo enhancements to improved audio quality; including SBC and MP3 decoder, support for The cVc dual microphone algorithm provides >30dB of FastStream (low-latency codec) and 5-band EQ.
noise suppression in both dynamic and stationary noise conditions such as babble, road, music and competing voices. In addition an acoustic echo canceller is now integrated into the cVc dual- microphone solution, further enhancing the far-end user-experience. This dual-microphone algorithm is BlueTunes ROM QFN includes secure simple pairing, which greatly simplifies the pairing process, making it even easier to use a Bluetooth headset.
BlueTunes ROM QFN is available in a 8 x 8 x 0.9mm Common TX/RX terminal simplifies external matching; eliminates external antenna switch support for SBC and MP3(1) codec for improved Bluetooth v2.1 + EDR specification compliant Single-cycle MAC; 24 x 24-bit multiply and 56-bit 7dBm RF transmit power with level control from on- ■ 32-bit instruction word, dual 24-bit data memory chip 6-bit DAC over a dynamic range >30dB 6K x 32-bit program RAM, 8K x 24-bit + 8K x 24-bit Class 2 and Class 3 support without the need for an 64 x 32-bit program memory cache when executing Digital demodulator for improved sensitivity and co- ■ Integrated amplifiers for driving 16Ω speakers; no Real-time digitised RSSI available on HCI interface Support for single-ended speaker termination and Fully integrated synthesiser requires no external VCO, varactor diode, resonator or loop filter Compatible with crystals 16MHz to 26MHz or an 48KB of internal RAM, allows full-speed data transfer, mixed voice/data and full piconet support Logic for FEC, HEC, access code correlation, CRC, Synchronous serial interface for system debugging demodulation, encryption bit stream generation, I2C compatible interface to external EEPROM containing device configuration data (PS Keys) Transcoders for A-law, μ-law and linear voice from host and A-law, μ-law and CVSD voice over air FastStream, CSR low latency codec significantly reduces the latency of the audio link, from source to sink, avoiding lip-sync issues when simultaneously listening to audio and watching video images Crystal oscillator with built-in digital trimming Configurable stereo headset ROM software to set- Power management includes digital shutdown and wake-up commands with an integrated low-power ■ HFP 1.5 (including 3-way calling) and HSP 1.0 oscillator for ultra-low power Park/Sniff/Hold mode Clock request output to control external clock Bluetooth v2.1 + EDR specification Secure Simple On-chip regulators: 1.5V output from 1.8V to 2.7V DSP based single-microphone cVc echo and noise On-chip high-efficiency switched-mode regulator: reduction is included in the BlueTunes ROM QFN A new high-performance dual-microphone noise Power-on-reset cell detects low-supply voltage reduction is available in BlueTunes ROM QFN as a licensed option for an extra 20dB of noise On-chip 150mA charger for lithium ion/polymer suppression, order code BCSW‑CVC‑HS‑2M‑R3 (1) MP3 decode functionality requires an appropriate license from Thomson MP3 decode functionality requires an appropriate license from Thomson.
Until BC57F687A05 reaches Production status, engineering samples order number applies. This is BC57F687A05-ES-IQF-E, with no minimum order quantity.
BlueTunes ROM QFN is a ROM-based device where the product code has the form BC57F687Axx. xx is the specific ROM-variant, 05 is the ROM-variant for BlueTunes ROM Stereo Headset Solution.
At Production status Minimum Order Quantity is 2kpcs taped and reeled.
To contact a CSR representative, email or go to 2.1 BlueTunes ROM Stereo Headset Solution Development Kit Ordering BlueTunes ROM Stereo Headset Solution Development Kit, If you have any comments about this document, egiving the number, title and section with Trademarks, Patents and LicencesUnless otherwise stated, words and logos marked with ™ or ® are trademarks registered or owned by CSR plc or its affiliates. Bluetooth® and the Bluetooth logos are trademarks owned by Bluetooth SIG, Inc. and licensed to CSR. Other products, services and names used in this document may have been trademarked by their respective owners.
The publication of this information does not imply that any license is granted under any patent or other rights owned by CSR plc.
CSR reserves the right to make technical changes to its products as part of its development programme.
While every care has been taken to ensure the accuracy of the contents of this document, CSR cannot accept responsibility for any errors.
CSR’s products are not authorised for use in life-support or safety-critical applications.
Refer to mpliance and conformance to standards information.

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