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PSoC 4 MCU

New Contributor

I'm inquiring about PSoC 4200 BLE.

The CY8C4248LQI-BL483 is being used with our wireless IT products. And we plan ship them to South Korea.

Now I would like to confirm whether CY8C4248LQI-BL483 meets Korean RF requirements or not.

According to below link which is RF regulations of Korea, that shows receiver spurious emitting should be less than -54 dBmW (term #12).

http://www.law.go.kr/lsInfoP.do?lsiSeq=196127&efYd=20170726#0000 

But on the other hand "PSoC 4200_BLE data sheet" shows receiver spurious emission only less than -47 dBm (Spec ID# SID356).

Also our existing test results were -53.4 dBm (around 4.8GHz). It's failed.

At 1st I would like to know whether some product already passed RF certificate with CY8C4248LQI-BL483?

If there were some,  I would appreciate if you could give me some idea to address this issue.

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Employee

Dear Customer,

The device CY8C4248LQI-BL483, as such has emissions (LO Leakage) that could exceed the Korean limit of -54 dBm. But this can be reduced using a low pass matching network in the front end.

The following modules have the same radio as CY8C4248LQI-BL483 and have been certified for Korea.

CYBLE-212019-00

CYBLE-222005-00

CYBLE-214009-00

CYBLE-224110-00

All these modules have implemented a low pass filter based matching network to filter out the LO leakage for receiver. The datasheet of these modules should have the schematics used in them.

Thanks,

Guha

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1 Reply
Employee

Dear Customer,

The device CY8C4248LQI-BL483, as such has emissions (LO Leakage) that could exceed the Korean limit of -54 dBm. But this can be reduced using a low pass matching network in the front end.

The following modules have the same radio as CY8C4248LQI-BL483 and have been certified for Korea.

CYBLE-212019-00

CYBLE-222005-00

CYBLE-214009-00

CYBLE-224110-00

All these modules have implemented a low pass filter based matching network to filter out the LO leakage for receiver. The datasheet of these modules should have the schematics used in them.

Thanks,

Guha

View solution in original post

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