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Smart Bluetooth

Anonymous
Not applicable

Hello,

now i'm working with the BCM92073X board.

So Pin 32/33 (TX/RX) have as standard 1.8V. But i need 3.3V.

If i read the schematic right i musst change the RFB1,RFB2 and C22 to get 3.3V on Pin 32/33!?!?

Regards

Asper

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1 Solution
Anonymous
Not applicable

Today, I changed the resistors RFB1,RFB2 to 470k and 150k.

Now i have 3.3V at PIN 32/33, it works xD.

But to solder 0402 resistors by hand is not easy.

View solution in original post

3 Replies
Anonymous
Not applicable

I didn't try it. But it seems to work.

What voltage do you input?

If it's 3.3V, how about changing SW3 from 2-3 to 1-2?

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Anonymous
Not applicable

I use USB 5V because i have no battery .

For a test I have a cable to 3V3_FTDI and VDDIO_HCI soldered and put SW4 P3 OFF to get 3.3V on MAX3395E Pin12  (VL).


But it doesn't work.

0 Likes
Anonymous
Not applicable

Today, I changed the resistors RFB1,RFB2 to 470k and 150k.

Now i have 3.3V at PIN 32/33, it works xD.

But to solder 0402 resistors by hand is not easy.

View solution in original post