BT85x Series

Overview: BT85x Series

The BT85x series of USB HCI modules and Adapter leverage the Cypress CYW20704 A2 chipset to provide exceptionally low power consumption with outstanding range for OEMs needing both Classic Bluetooth and Bluetooth Low Energy support. The Bluetooth v4.2 core specification shortens your development time and provides enhanced throughput, security and privacy.

The BT850 modules are ideal when designers need both performance and minimum size. For maximum flexibility in integration, they support a host USB interface, I2S and PCM audio interfaces, GPIO, and Cypress' GCI coexistence (2-Wire). The modules provide excellent RF performance and identical footprint options for integrated antenna or an external antenna via a trace pin.

These modules present a Bluetooth standard HCI interface with native support for Windows, Linux and Android Bluetooth software stacks for operating system backed devices. The BT851 Pluggable USB Adapter with inbuilt Bluetooth stack simply plugs into any Windows, Android or Linux device via external USB connection.

Additionally, Laird has partnered with Searan for support of their ultra small, flexible ‘dotstack’ platform for embedded Cortex M3 and M4 implementations.

  • Bluetooth v4.2 – Dual Mode – BR / EDR / LE – Classic Bluetooth and Bluetooth Low Energy (BLE)
  • Compact Footprint – As small as 8.5x12.85 mm
  • Class 1 Output – up to 8 dBm
  • USB v2.0 Host interface
  • GPIO, GCI, I2S and PCM
  • Industrial Operating Temp: -30° to +85°C
  • Bluetooth SIG approved – Hardware Controller Subsystem
  • International regulatory approvals – FCC, IC, CE, RCM, & Japan approvals
  • Two form factors: BT850 Module or BT851 packaged USB Adapter. Embed or plug in, design your way.
  • Broad OS Support – Windows, Linux, Android
  • Fully-Featured Development Kit – Low cost kit for prototyping/debugging/integration testing to speed development time

  • Support for Windows/Linux/Android via USB interface, plus external USB pluggable adapter variant 
  • Class I +8dBm output power in an 8.5 x 12.85 mm package means no need to compromise one for the other 
  • Wide array of Operating System support, as well as embedded MCU support for Searan’s flexible DotStack platform give you even more design choices 
  • Certifications and approvals for FCC (USA), IC (Canada), ETSI (Europe), Giteki (Japan), RCM (AUS/NZ), Bluetooth SIG 
  • Industry-recognized integration and support organization dedicated to reducing your time to market
  • Antenna Options
    Internal Multilayer Ceramic (BT850-SA)
    External SMT Pad (BT850-ST)
  • Applications
    AIDC Products / Barcode Scanners, Industrial Cable Replacement, IoT Platforms, Medical Devices, Automotive Diagnostics
  • Bluetooth Version
    V4.2 Dual Mode
  • Chipset
    Cypress CYW20704 A2
  • Compliance
    FCC / IC / CE / RCM / Giteki
  • Data Rate
    Up to 3 Mbps (over the air)
  • Frequency
    2.402 – 2.480 GHz
  • Frequency Range (Max)
  • Frequency Range (Min)
  • Input Power
    3.0V – 3.6V (BT850-SA and BT850-ST)
    5V via USB port (BT851)
  • Logical Interfaces
    Full-speed USB 2.0
  • Max Transmit Power
    Class 1
    +8 dBm from antenna
    +8 dBm from trace pin
  • Operating Systems Supported
    Windows, Linux and Android Bluetooth software stacks for operating system backed devices
  • Power Consumption (Tx)
    < 55 mA
  • Product Line
    BT85x Series
  • Range
    Circa 100 meters
  • Receive Sensitivity
    -94 dBm
  • Wi-Fi Coexistence
    2-wire Cypress Global Coexistence Interface (GCI)
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