If you want build a digital Bluetooth amplifier board. AudioB I2S
Bluetooth audio receiver module is a good choice for your project. This
is a bluetooth 4.2 stereo recevier module, I2S digital output and music
resampling frequency is 48KHz. Apt-X supported. Based on CSRA64215. We
breakout pins to 2x10 2mm space male pins. You can integrate it to your
project easily. This module has a SMA connector. You can connect an
external 2.4G antenna with it.
If you want a demo board. Please buy our TSA7010 Digital Bluetooth Audio Receiver. It's a AudioB I2S module + DAC board.
The module PIN7,8,9,10 are I2S output pins:
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7 - GND
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8 - BCK I2S synchronous data clock, It's a 2.304MHz square wave signal.
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9 - SD I2S synchronous data output.
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10 - LRCK I2S word select, 48KHz. 1 - Left channel data, 0 - Right channel data.
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Setting switch: We set to I2S in normal state. Set to SPI when you need programming the module.
Note: You need set the on board switch to SPI when you programming the module
![](https://www.tinyosshop.com/image/data/Audio/Audio receiver/AudioB I2S-4.jpg)
![](https://www.tinyosshop.com/image/data/Audio/Audio receiver/AudioB I2S-5.jpg)
Note:
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Quick press S2 to switch to the previous song, long press to reduce the volume
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Quick press S3 to switch to the next song, long press to increase the volume
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Press S1 to play or pause
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if there have audio output, MUTE pin will be high level, otherwise, will be low level.
Features:
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Bluetooth 4.2
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I2S digital output
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Sampling Rate: 48KHz
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Bit per Sample: 16 bit
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Left Justified
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Justified Data 1 bit delay
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Apt-X supported
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Low power consumption: 5mA@5V
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HFP V1.6
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HSP V1.2
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A2DP V1.2
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AVRCP v1.4
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Support for smartphone application(APPs)