This module is suitable for modifying audio equipment such as power amplifier, power
amplifier board DIY, power amplifier pre-effects and so on. The traditional wired
transmission is converted into wireless Bluetooth transmission. The module uses the
CSR64215 high-fidelity Bluetooth chip. The Bluetooth 4.2 high version guarantees the
high-speed transmission of data, so that the audio data is transmitted to the analog
amplifier without loss. To achieve wireless HIF I-level sound quality. The module supports
APT-X lossless reception and the sound quality is up to CD level. It is a truly lossless
Bluetooth receiver module. The module accepts Bluetooth and outputs a standard
single-ended analog audio signal. Audio signals can be directly supplied to the preamp or
post analog amplifier without the need for an additional DAC decoder. In order to facilitate
the conversion of DIY friends, the module is designed with an AUX input for easy external
wiring. The imported NEC high-precision relay is used for switching between AUX and
Bluetooth. The AUX input is not processed by any chip and is directly switched by the
relay. Ensure lossless output of AUX audio to the amplifier.
Features:
The CSR64215 Bluetooth Receiver Module supports the following protocols:
APT-X, A2DPv1.3, AVRCPv1.6, HFPv1.6, HSPv1.2, and DIv1.3 basically meet all
Bluetooth transmitting devices currently on the market.
Tips:
If the Bluetooth is working, the amplifier has a slight noise or interference sound, and a
small power supply of 6-36V 500MA or more is added to the Bluetooth module to solve
the noise problem. Sharing power with the device is prone to co-interference noise floor noise.
1.DC power input interface, GND is the negative pole of the power supply, +12V is the
positive pole of the power supply. Wide voltage: 6-36V.
2.AUX audio interface, LINE_ INR right channel input, GND common ground, LINE_ INL
left channel input.
3.Audio output interface, R_ _OUT right channel output, GND common ground, L_ _OUT
left channel output.
4.Audio switching relay, NEC imported, guarantees sound quality transmission and working life.
5.Onboard Bluetooth antenna, used to receive signals, keep empty and unobstructed. If the module
is installed in a metal chassis, an external antenna (2.4G antenna of the router) is required to
ensure complete reception of the signal. No external antenna is required on the side of the plastic
case or the wooden case. External antenna connection reference Figure 2.
6.Bluetooth work indicator 1
7.Bluetooth work indicator 2
8.CSR64215 Bluetooth solution, support APT-X lossless signal reception
Packing list:
1pcs CSR64215 Bluetooth Receiver Module
3pcs cables