What is name of the IC manufacturer with this logo?

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Probably it is Chinese manufacturer. I wasn't able to find it here or here.

I need to find specification or datasheet of its audio bluetooth reciever circuits 1748NRZ-11F and 17280-11C.

These chips are used in bluetooth car media players like this one.

  • \$\begingroup\$ Googling 1914SRZ is returning a bunch of seemingly relevant results. Not the IC manufacturer though. \$\endgroup\$
    – Eugene Sh.
    Nov 19, 2019 at 15:33
  • \$\begingroup\$ I know, almost each link is going to aliexpress store. But i can't find any datasheet. \$\endgroup\$
    – pjaro77
    Nov 20, 2019 at 9:57

1 Answer 1


Manufacturer company name is Appotech


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