This is my schematic What could possibly go wrong? CC8520, CC2590, BQ25015, TLV320ADC3001

Freddi Arce

Other Parts Discussed in Thread: CC2590

Hi, i putted this components together and i want to make the PCB, is something missing?

I want to transmit a signal from an electric guitar, and i have a question, the signal of an electric guitar can go directly to the input pin IN1L(P) on the ADC?

Thank you very much

over 14 years ago

0 Freddi Arce over 14 years ago

Prodigy 45 points

I guess that the schematic is not very clear, it can be seen here

Thank you very much

0 Kristoffer S over 14 years ago in reply to Freddi Arce

TI__Expert 7160 points

Hi Freddi,

You're missing a few things. Especially you're missing the 6n8 inductors that should be on the IOs of CC85xx, many of your IOVDD pins on the CC85xx are unconnected, you don't have an antenna, you're missing inductor lines and decoupling capacitors on the CC2590 etc. Have a look at our reference design for the CC85XX Headset board which should be quite similar to your design, we're even using the same BQ chip as in your design. We recommend that you copy the design as close as possible, especially the RF part. The ref design can be dowloaded from here: http://www.ti.com/tool/cc85xxdk-headset-rd

-Kristoffer

0 Freddi Arce over 13 years ago in reply to Kristoffer S

Prodigy 45 points

Hi Kristoffer, I made the design using CADsoft software (Eagle) I added the 6n8 inductors and other items that were missing. Can i upload the file here?

Greetings

Fred

0 Freddi Arce over 13 years ago in reply to Freddi Arce

Prodigy 45 points

Here I show some screenshots of the squematic made in the eagle software, I guess it is better to see the file in the software. It is a free software and can be downloaded from the website, http://www.cadsoftusa.com/download-eagle/?language=en

Here are the screenshots.

Audio

Audio forum

This is my schematic What could possibly go wrong? CC8520, CC2590, BQ25015, TLV320ADC3001