Specifications

1.Hi-Fi with apt-X technology
2.High efficiency antenna built in
3.Noise/echo cancelling, tunable audio
4.EMC compliance

Bluetooth music speaker module

Spec Item		Range
General	Dimension (mm)	24.0 x 17.8 x 2.4 mm
	PCB material	FR4 4 layers
	Soldering pin type	Stamp module for SMT
	Antenna	Antenna built-in
	Firmware memory	ROM
Bluetooth	Bluetooth version	Bluetooth specification: V4.1 + EDR
	Bluetooth chipset	BlueCore® CSR8645™
	Profiles supported	A2DP/AVRCP/HFP/HSP
Connectivity	Multi-link - A2DP/HFP	2 x host devices (A2DP/HFP) or 2 x headsets
	App connection	CSR's proximity pairing & connection
	NFC	External NFC module available (Optional)
RF/Wireless	Frequency range	2.402GHz to 2.483GHz
	Transmission power	Class 2 , 0 ~ +8 dBm
	Sensitivity	-90dBm (typical)
	Wireless Range	>10m ( free space)
Audio	Microphone inputs	2 x analog mic +2 x digital mic (MEMS)
	Line-in	Support for stereo line-in
	Output for speaker	Stereo differential output (upto 50mW)
	ADC sampling	8 KHz ~ 48 KHz, 16-bit high-quality
	DAC sampling	8 KHz ~ 96 KHz, 16-bit high-quality
	Codec	Hi-Fi quality stereo codec
	Decoder support	aptX, SBC, MP3 and AAC
	Music Enhancements	Configurable EQ, S3D, Volume Boost
	Noise/Echo reduction	CVC6.0 noise and echo reduction
	HSP voice	HD voice, bi-directional noise reduction
Electrical	Supply Voltage - Charger	4.75~5.75V (Recommended)
	Supply Voltage - Battery	4.30V (Max)
	Supply Voltage	3.0V~3.7V (Recommended)
	Power comsumption - StandBy	~250uA (typical)  @ACL link, Sniff 500ms, LED off
	Power comsumption - SCO	~11 mA (typical) @SCO link, HV3 packet
	Power comsumption - A2DP	~13 mA (typical) @SBC, 48KHz sampling

 

Key Features 

1. Bluetooth stereo module for high-end audio products

2. High efficiency PCB antenna built in

3. Support for Hi-Fi sound quality

4. Apt-X decoder built in  

5. RF transmission power level control configurable

6. Multi-band EQ tunable, S3D and Volume Boost

7. Support for voice prompt 

8. Multi-languages voice prompt  (optional)

9. Optional Dual-mic noise cancellation firmware version available

10. Support for USB charging enumeration and Charge management

11. Multi-point connection with 2 source devices

12. Bluetooth multi-connection A2DP adapter - 1Tx/2Rx and/or 2Tx/1Rx - combined by yourself

13. Functional, RF, audio and Bluetooth performance verified

14. Complete environmental & reliability test

15. Verified production line capability and quality system

  Product picture

 

R&D Lab Test

 

 

  Production Assembly Line

  Factory picture

 

 

About product

This is a high-quality Bluetooth module with PCB antenna built in. The module is elaborately designed in EMI and audio configuration based on Bluetooth stereo chipset CSR8645 with CVC noise & echo cancellation and apt-X technologies, support for multi-link, smart apps connectivity, dual-mic, digital mic, wired audio features.  It has excellent RF performance by fine-tuned RF match and antenna directionality.

 

About our company

We are an one-stop supplier with professional service in wireless audio products, both in R&D and production quality based on our management system and industrial expertise.