ST FAE Answer: Reference circuit for replacing BlueNRG's balun BALF-NRG-02D3 with discrete devices

nmg

ST FAE Answer: Reference circuit for replacing BlueNRG's balun BALF-NRG-02D3 with discrete devices [Copy link]

 

Netizen @千本樱大白asked: If BlueNRG 's balun BALF-NRG-02D3 is replaced with discrete devices, is there any reference circuit?

ST FAE Answer:

STEVAL-IDB007V1_bom.xlsx (23.86 KB, downloads: 10)

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STEVAL-IDB007V1_schematic.pdf (55.49 KB, downloads: 16)

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STEVAL-IDB007V1_Gerber.zip (1.53 MB, downloads: 10)

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nmg

@千本樱大白 Check the information provided above to see if it meets your needs

千本樱大白

nmg Published on 2020-11-11 13:07 @千本樱大白 Check out the information provided above to see if it meets your needs

OK, thank you. The previous problem has been solved. It was caused by the crystal oscillator. The 4-pin passive pin was replaced with an active one. However, the capacitor at VDD should also be very important.

littleshrimp

Senbenzakura Dabai published on 2020-11-11 14:15 Ok, thank you. The previous problem has been solved. It was because of the crystal oscillator. The 4pin passive pin used an active one, but the capacitor on VDD should also be very heavy...

It's good to solve the problem. If you have a problem, you can find the solution by yourself by posting it for a long time.