[Photo] Do it yourself, making high-fidelity wireless stereo speakers

If you do it yourself and make a set of high-fidelity wireless Stereo Speakers, you will definitely have a sense of accomplishment while enjoying beautiful music without restraint. If you already have a 2.1

Channel speakers, plus your work, can form a wireless surround stereo speaker system, of course you have to have a 4.1 channel sound card; in addition, the wireless stereo speakers can also be combined with your existing audio system

All form a wireless home theater.

Describes the current wireless stereo speaker system includes a wireless stereo transmitter (FM transmitter BH1416F BH1417F or chip) circuit and a stereo radio receiver (CXA1238M frequency modulation receiver chip)

Compared with the amplifying circuit, because the circuit is simple and there are few peripheral components, even ordinary amateur electronic enthusiasts have a very high production success rate.

(1) Production of launching device

The transmitter adopts ROHM's monolithic digital phase-locked stereo modulation chip BH1416F. The chip has excellent performance, distortion is only 0.5%, channel separation is up to 40dB, and the transmitted sound quality can be

Reach professional level. The pin functions are as follows:

The transmitting circuit formed by BH1416F is as follows:

(2) Production of receiving and amplifying circuits

The receiving circuit adopts Sony's high-quality FM stereo receiver chip CXA1238M, and its pin functions are shown in the following figure:

The receiving circuit formed by CXA1238M is shown in the following figure:

The amplifying circuit adopts TDA2030A high-fidelity audio amplifying chip, which is designed on the same printed circuit board as the receiving circuit.

　　　

Note:

1. If you choose the kit of this part, this part will provide you with relevant drawings and materials;

2. If the above graphics are not clear, you can save the graphics and then open them with ACDSeea or other graphics viewing software.

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Mini Speaker:

 

Mini speaker is a kind of speaker unit which is used for multimedia devices. Multimedia Speakers have loud sound, wide frequency response range and rich bass.

 

Our main multimedia speakers are full ranges speakers units:

1)    From the diameter: we have speakers in 1" ~ 3".

2)    From the power output, we have speakers of 2W ~ 15W.


 multimedia speaker


multimedia speaker


FAQ

Q1. What is the MOQ?
XDEC: 2000pcs for one model.
Q2. What is the delivery lead time?
XDEC: 20 days for normal orders, 15 days for urgent orders. 
Q3. What are the payment methods?
XDEC: T/T, PayPal, Western Union, Money Gram. 
Q4. Can you offer samples for testing?
XDEC: Yes, we offer free samples. 
Q5. How soon can you send samples?
XDEC: We can send samples in 3-5 days.

Mini Speaker

Portable Mini Speaker,Bluetooth Mini Speaker,Waterproof Mini Speaker, Mini Lamp Speaker

Shenzhen Xuanda Electronics Co., Ltd. , https://www.xdecspeaker.com

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