FM transmitter module: help to recognize IC

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NovaPA

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Joined 2016
radiomonkeys.blogspot.com/
Dear collegues
On Ebay / Ali such simple, and high-quality FM transmitter modules are sold

Please help determine what it is made of? What kind of chip?
Googling the inscription on it does not give anything at all.

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avtech

avtech

Member
Joined 2017
Not sure about the chip but there is a write up of a similar one here:

Review, Tested: Generic USB FM Transmitter (FM_MIC_V5.0.9) | Gough's Tech Zone

And another here:

This JQ-D015BT module has the AC181IDE1234-01 SoC manufactured by JL (logo that looks like a PI symbol). It has built-in music decoders, Bluetooth circuitry, memory card interface, and display drivers. By placing everything on a single chip, there is virtually nothing on the board except some SMD resistors, capacitors, and a clock crystal. However, all of this is good for the consumer because you get something that costs virtually nothing to produce and use. SoC technology is progressing at a fast pace and factories in China are already producing the next generation of modules that can decode audio and video. Consequently, there is a huge selection of modules offering a wide range of functions for all sorts of applications.

I was not able to find any information about the AC181IDE1234-01 SoC, as these technologies are usually kept secret. Manufacturers usually do that when they want to prevent anyone copying their designs. However, if you have a block diagram or datasheet, then feel free to send it.
Click to expand...
MP3 Player Module with Bluetooth


Manufacturer of the SOC is likely to be Jeilin Technologies, Taiwan.
 
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