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Bluetooth CSR8645 APTX ROM mdoule ---BTM-645

Bluetooth CSR8645 APTX ROM mdoule ---BTM-645

Place of Origin : China
Brand Name : Rayson
Certification : BQB
Model Number : BTM-645
MOQ : 1000pcs
Price : USD5.5~6
Packaging Details : Vacumm package
Delivery Time : 7~42Days
Payment Terms : TBD
Supply Ability : 500K/month
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Product Description

This is a Bluetooth Class2 (max 4dBm) module. It is based on CSR 8645 ROM version chip set which supports Bluetooth V3.0 standard and CSR APTX audio streaming. The APTX feature provide high quality audio streaming compared to traditional SBC coding. Its latency time is as low as 75ms which is sufficient for most of the multimedia applications. The Embedded Kalimba DSP Co-Processor also support the advanced features such as echo cancellation, noise reduction ,and stereo audio (A2DP profile) communications. Advanced user interface design allows multipoint HFP or A2DP connections and secure simple pairing. The integrated stereo DAC provide high quality audio performance with SNR up to 95dB. Support digital audio bus such as PCM, I2S or SPDIF. And the on chip Switched-Mode Regulator and Li-ion battery charger eliminate the needs of external components and costs. The true single chip solution to audio applications. Internal ROM, serial flash and EEPROM enable the flexibilities of the module to meet various kinds of applications.


  • High quality wireless stereo headset with APTX features.
  • High quality wireless stereo speaker with APTX features.
  • Hands-free car kits.
  • VOIP or land line phones wireless headsets.

Product Benefits

  • Cost effective ROM version.
  • Not required for initial technology transfer fee of APTX.
  • Simple design and easy to use.
  • Flexible configurations for various kinds of applications

Product Specification


13.4 x 13.4 x 2.7 mm (8M SPI Flash for voice prompts)

13.4 x 13.4 x 1.9 mm (EEPROM)

Bluetooth Standard

Bluetooth 3.0

RF Power

4dBm maximum

Receiving Sensitivity


Program Memory

ROM version

Physical Interfaces

Digital PIOs, Analogue IOs,

Supply Voltage

2.7V – 4.25V

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