Saturday, April 29, 2017

Enjoy CD-level Quality Sound with Wireless Bluetooth Connectivity

Enjoy CD-level Quality Sound with Wireless Bluetooth Connectivity


The new CSRA64XXX ROM series audio platform is designed for entry-level and mid-range Bluetooth speaker devices, bringing a new level of sound quality and functionality. It will be seen in the Bluetooth speakers, wireless headset, car audio, wireless hands-free products.

Bluetooth Tube Audio With CSRA64215


The audio platform supports Qualcomm's unique audio technology, including TrueWireless Stereo wireless stereo technology, cVc noise reduction technology, the sixth generation CVC voice enhancement technology.

The top model "CSRA64215" also supports aptX audio technology that provides CD-level sound quality with Bluetooth connectivity, as well as aptX low latency technology that can listen to aptX quality audio while watching video. "CSRA64210", "CSRA64110" are facing stereo, mono Bluetooth speaker equipment, suitable for high-cost effective products.


Three are built-in 16-bit stereo codec, digital-to-analog conversion SNR 95dB, support for Bluetooth 4.0 + EDR standard specification, Support A2DP 1.3, AVRCP 1.5, HFP 1.6 (including WBS / mSBC), HSP 1.2 and other related agreements, the effective distance of 10 meters.



There are some products that built in Bluetooth module with CSRA64215,whose actual listening experience is excellent.




It is a desktop Bluetooth tube amplifier, and will be better if it matched a pair high sensitivity speakers.







Or, you can us a Bluetooth 4.2 Decoder to refresh your old amplifier to enjoy CD level quality sound with Bluetooth connectivity. It is a Bluetooth decoder with Bluetooth 4.2 CSR64215 and DAC ES9023. The Bluetooth 4.1 version CSR64215 implemented   digital signal transmission thought wireless function, the digital to analog conversion of audio output used a professional decoder chip ES9023 to play that the digital signal is decoded into an analog audio signal.



IWISTAO HIFI Bluetooth 4.2 Decoder Stereo CSR64215 DAC ES9023 Hardware Decoding APT-X


If you need the Bluetooth decoder with CSR8670, you may find here.They are Bluetooth decoder with Bluetooth 4.0 CSR867 and DAC AK4490. The Bluetooth 4.0 version CSR8670 implemented   digital signal transmission thought wireless function, the digital to analog conversion of audio output used a professional decoder chip AK4490 to play that the digital signal is decoded into an analog audio signal, and finally OP amplified the analog audio signal and output it.

IWISTAO HIFI Bluetooth4.0 Decoder Stereo CSR8670 32-bit DAC AK4490 Hardware Decoding Bluetooth Optical Inputs PCM & DSD APT-X


IWISTAO Earphone Amplifier HIFI Solo with Bluetooth 4.0 CSR8670 32-bit DAC AK4490 Hardware Decoding Optical Inputs APT-X




A Bluetooth 4.2 Development Simulation Demo Board Based on CSRA64215 (For study only)

A Bluetooth 4.2 Development Simulation Demo Board Based on CSRA64215 

This Bluetooth development board is used to develop related Bluetooth products for developers only, which contains 4M FLASH, it is a fast, convenient, practical, necessary weapon for product development. This development board can be used to develop Bluetooth headset, car hands-free, Bluetooth speakers and so on.

You can find the features of CSRA64215 as below.




Features of the CSRA64215 Board

1. Provide 3W amplifier output, then speaker can be used directly as a Bluetooth speaker.
2. Provide 3.5 headphone output interface, can be used directly as a Bluetooth headset when plug the headset.
3. Provide 3.5AUX-IN port, support AUX-IN switch.
4. MIC interface, can be called to call, and provide debugging dual MIC noise cancellation function.
5. SPI debug burning interface, to facilitate the use of debugging.
6. Bluetooth IO port are reserved for the PIN, for development and debugging.
7. 8 keys, 8 IO port with LED instructions IO port working state.
8. Power button MFB provides key to boot and power on two ways.
9. Three-color LED instructions, debugging LED status more convenient.
10. USB communication function, used to debug USB sound card function.
11. This development board backplane can also be used for all other CSR modules.




Introduction of board interface




More Detils, please visit 

CSRA64215 Bluetooth 4.2 Development Board Simulation Demo Boards



There is a Development Simulation Demo Board for CSR8645,