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ADC32RF45EVM: Question about “slau620e.pdf” User Guide.

Kazuhiro Kawano
Prodigy 50 points
Part Number: ADC32RF45EVM
Other Parts Discussed in Thread: ADC32RF45, ADC32RF55

Tool/software:

This is a question from one of our customers.

 The customer is trying to operate ADC32RF45EVM evaluation board based on “slau620e.pdf” User Guide.

They have a question regarding the description in Chapter 8.2.1 of the User Guide.

In this sections, there are instructions to "Unsolder" and "Solder", indicating soldering work.

However, the corresponding areas on the actual evaluation board are very narrow and intricate.

It seems very difficult to perform unsoldering or soldering in these areas.

Could you please provide advice on how to proceed with the soldering work?

 

Reference of slau620e.pdf / Chapter 8.2.1:

“Unsolder the two AC coupling caps from positions C409 and C410 and solder them into positions C431 and C432.”

  • 0
    TI__Expert 4480 points

    Hello,

    The components are small and the design is compact to minimize parasitics of the high speed signals.  

    Regards,

    Geoff

  • 0 in reply to Geoff Roth
    Prodigy 50 points

    Soldering/Unsoldering narrow pitch is difficult, so I would appreciate any good technical advice.

  • +1 in reply to Kazuhiro Kawano
    TI__Mastermind 22380 points

    Hi Kazuhiko,

    There is a lot of open room around these parts so I am not sure I understand the narrow pitch you are referring to - these parts are standard 0201 footprint size. Using a microscope for soldering is required. Many people cannot solder these and the solution is for somebody who is capable of working with 0201 to do the work. If you want, you can send the board to us and I can perform the soldering. Also, why choose ADC32RF45 device over ADC32RF55, which is much better performance?

    Thanks, Chase

  • +1 in reply to Chase W
    TI__Mastermind 30240 points

    Hi Kazuhiko-san,

    If you cannot do the soldering to make these changes, please contact your local contract manufacture in order to do them. Otherwise, the other alternative, is to send the EVM back to us and we can make the soldering changes for you.

    Please let us know which way you want to go.

    Thanks,

    Rob

  • 0 in reply to Chase W
    Prodigy 50 points

    Hi Chase,

    I asked customer to ask someone with good soldering skills to do the soldering/unsoldering work.

    Thanks,