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CSR8645 Low Power Bluetooth V4.0 Audio Amplifier Module Support aptX

945.00 + GST

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This Bluetooth Audio Module based on the CSR8645, with latest Bluetooth V4.0. It is an Intelligent wireless audio data transmission product, low price, and high-efficiency stereo audio wireless transmission. With this module, you will easy to make your music wireless transmission, mainly used for short-distance transmission of music, you can easily connect Bluetooth laptop, cell phone, PDA and other digital products connected devices for wireless transmission of music.

It has a total of 6 function keys which is POWER-EN, PLAY, VOL+, VOL-, PREV, NEXT.
The key function is introduced as follows:
  • POWER-EN: the switch control module when the switch, the toggle switch, when the POWER-EN is connected toBAT, module startup; When POWER-EN disconnect BAT, module shutdown, usually used when battery power. Adopting the module electrically powered, only the 10K POWER-EN series resistor connected to BAT, can realize the module electrically powered, usually used in the external power supply.
  • PLAY: Play/Pause (short press), with the hang-up (by a long, time slightly longer), repairing (long press).
  • VOL+: Volume plus.
  • VOL-: the volume Minus.
  • PREV: To the Previous Track.
  • NEXT: To the Next Track.


Bluetooth Profiles:-

  • Bluetooth v4.0 specification support.
  • HFP v1.6 wideband speech (HD voice ready).
  • HSP v1.2.
  • A2DP v1.2.
  • AVRCP v1.4.
  • Support for smartphone applications (apps).

Improved Audio Quality:-

  • 2-mic far-end audio enhancements.
  • Near-end audio enhancements (noise suppression and AEQ).
  • Wind noise reduction.
  • Packet loss concealment.
  • Bit error concealment.
  • Automatic gain control and automatic volume control.
  • Frequency expansion for improved speech intelligibility.
  • mSBC codec support for wideband speech.

Music Enhancements:-

  • Configurable 5-band EQ for music playback (rock, pop, classical, jazz, dance etc).
  • APTX, SBC, MP3, AAC, and Fast stream decoder.
  • Stereo widening (S3D).
  • Volume Boost Additional Functionality Additional Functionality.
  • Support for voice recognition.
  • Support for multi-language programmable audio prompts.
  • CSRs proximity pairing and CSRs proximity connection.
  • Multipoint support for HFP connection to 2 handsets for voice.
  • Multipoint support for A2DP connection to 2 A2DP sources for music playback.
  • Talk-time extension.


Type F-3188
Module Version V1.0
Bluetooth Version V4.0
Input Voltage (V) 3.3 ~ 4.2
Bluetooth protocol HFP V1.6/A2DP V1.2/AVRCP V1.4/HSP V1.2
Working current (mA) 30
Standby Current (A) <50
Operating Temperature () -40 ~ +80
Wireless transmission range (m) > 10
Transmission power CLASS1/CLASS2/CLASS3,9dbm(MAX)
Sensitivity -80dBm<0.1R
Frequency Range (GHz) 2.4 ~ 2.480
Audio SNR (dB) 75
Length (mm) 27
Width (mm) 14
Height (mm) 2

* product image for illustration purposes only. actual product may vary.


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