BT55-187S Bluetooth module optimized for Audio application

BT55-187S Bluetooth module optimized for Audio application

BT55-187S Bluetooth module optimized for Audio application

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The BT55-187S is A general purpose Bluetooth module designed to be incorporated into an end product. This Bluetooth Module is a Class 2 Bluetooth device based on the BlueCore5-External chipset from Cambridge Silicon Radio, a leading Bluetooth chipset supplier. It provides a fully compliant Bluetooth system for audio communications. It interfaces with a host via UART and PCM port (USB optional) and supports EDR data rate up to 3Mbps modulation modes. The module and device firmware are fully compliant with the Bluetooth specification V2.0.


FEATURES: Optimized for audio application Exclellent choice for Stereo Bluetooth applicaitons DSP based echo Cancellation Class 2 power output levels Firmware Upgrade Support (via the UART) Development board available.

Product General Specification

Operating Frequency Band 2.40 GHz~2.48GHz unlicensed ISM Band Bluetooth Spec. v2.1 Compliant Enhanced Data Rate (EDR) EDR compliant with v2.0.E.2 of specification for both 2Mbps and 3Mbps modulation modes Class 2 type Output Power. Active Bluetooth Connections signal Built-in DSP processor for echo cancellation Echo cancellation: Linear echo cancellation 25-35dB sound measurement cancellation, 52-65dB acoustic echo cancellation The module eliminates various echoes within 200ms, providing clear, smooth full-duplex voice communication. Noise cancellation: 18dB, Serial port Profile Support (special order) Audio Profile (HSP HF ) Built in CODEC Left and Right channels for Audio A / D, D / A: 72dB SNR, sampling rate 8-11K Low Voltage Power Supply, 2.7V to 3.6V (3.3 Volt preferred) Standard UART for Set-up commands (9600,N,8,1) Built-in 8Mbit Flash Memory Low Power Modes Available: Park, Sniff, Hold and Deep Sleep Automatically reverts to low power operation Supports Data Encryption Dimensions: 31.75mm X 14.48mm Operating Temperature -20 to 75 Degrees C Storage Temperature: -40 to 85 Degrees C Voice activated controls Directly drives a 50ohm External Antenna


Hands-free audio Headset audio Telemetry Systems Full-speed Stereo

Product Ordering PN

BT55-187S-XXX Class 2 Bluetooth Module optimized for audio