Csr Bluetooth 6145

The phrase 'CSR Bluetooth 6145' refers to the CSR BC6145, a legacy single-chip Bluetooth v3.0 solution designed by Cambridge Silicon Radio (now part of Qualcomm). While it was once a standard for entry-level mono headsets, the market has shifted significantly toward higher performance, lower power, and broadcast capabilities for 2026. FccidDatasheet4U

Product Specifications & Role

The BC6145 was built as a low-cost, fully-featured ROM IC for Bluetooth mono headsets. Datasheet4U

* Core Technology: Features a 64MIPS Kalimba DSP and 6th generation CVC noise cancellation, providing reliable audio quality for phone calls. Fccid

* Connectivity: Supports Bluetooth v3.0 with Multipoint HFP, allowing connections to two phones simultaneously. Fccid

* Legacy Status: As a v3.0 chip, it lacks support for modern Bluetooth Low Energy (BLE) and the latest high-fidelity codecs (like aptX Adaptive), making it a legacy product primarily found in budget or specialized replacement markets.

Market Trends & Insights for 2026

The Bluetooth ecosystem is undergoing a major transformation, moving far beyond the capabilities of the 6145 series: Bluetooth

* Auracast™ Broadcast Audio: By 2026, Bluetooth audio is shifting from one-to-one to one-to-many. Auracast will become a standard for public assistive listening and shared audio experiences. Bluetooth

* High-Speed Data: New Bluetooth LE enhancements are pushing data rates up to 8 Mbps, enabling CD-quality lossless audio that legacy v3.0 chips cannot handle. Bluetooth

* Ambient Intelligence: The rise of Channel Sounding provides centimeter-level distance awareness, critical for secure digital keys and precise asset tracking. Bluetooth

* Market Growth: The Bluetooth Smart and Smart Ready market is projected to reach $16.8 billion by 2030, driven by healthcare wearables and smart home automation. Strategicmarketresearch

Sourcing & Replacement Insights

Finding original BC6145 chips is increasingly difficult as the industry moves to Bluetooth 5.0+ standards. Modern replacements often involve more advanced CSR/Qualcomm chips like the CSR8635 or CSR8645 for stereo audio and better power efficiency. AlibabaAlibaba

Current market offerings for mono headsets have largely transitioned to Bluetooth v5.3, offering significantly better range, stability, and lower prices (starting as low as $0.86/piece in wholesale). Alibaba