CC2652R: Inquiries about CC2652R implementation

Takayuki Miyazaki

Part Number: CC2652R
Other Parts Discussed in Thread: LAUNCHXL-CC26X2R1

Hi team,

Customer plans to develop the module board with CC2652R. I received some inquiries about CC2652R implementation as follows.

1. VDDR Decoupling Capacitors size

According to Schematic/BOM of LAUNCHXL-CC26x2R1 Design Files (https://www.ti.com/lit/zip/swrc346), we can see that CERAMIC Capacitors (Size:1005M). Due to reduce the board size, customer would like to use CERAMIC Capacitors (Size:0603M). if all parameters of this small CERAMIC Capacitors is same, would you consider that customer is able to use it? , if there are good CERAMIC Capacitors (Size:0603M) which TI recommends, would you share this information, please?

2. Regarding GPIO pins (DIO_2, DIO_3, DIO_2, DIO_3, DIO_18, DIO_19), What is the Capacity value which those pins have? I’m not sure if TI has this answer. however, could you elaborate it, please?

3. Soldering temperature condition

Customer is looking for Soldering temperature condition. As far as I checked, I found the following document. Would you think this document is available for CC2652R device? if there is any helpful document, could you share this information, please?

http://www.ti.com/lit/slua271

Best regards, Miyazaki

over 5 years ago

0 Alexis Crandall20 over 5 years ago

TI__Genius 15590 points

Hi Takayuki,

1. Moving to a smaller package shouldn't be an issue. I'm not sure if we have part recommendations for this, but I can check.

2. I'm not sure I understand what you're asking, can you elaborate?

3. That can be found in the packaging information section in the datasheet.

Thanks,

Alexis

0 user6436665 over 5 years ago in reply to Alexis Crandall20

Prodigy 20 points

Dear Mr.Alexis

I asked Mr.Miyazaki to post a question.

Thank you Mr.Alexis for your response.

This is to confirm about the question 2.

Regarding question 2, capacitance means stray capacitance.
I would like to know about the capacitance value of the stray capacitance between GPIOpins and GND.

Best regards,Nakata

0 Takayuki Miyazaki over 5 years ago in reply to user6436665

TI__Genius 10120 points

Nakata-san, Thank you for clarification for #2.

Hi Alexis,

Regarding #1, if you try to find recommendations parts for this, we really appreciate.

Regarding #2, I suppose GPIO may have small Parasitic capacitance (few nF or pF).

Regarding #3, Thank you for your clarification.

Best regards,

Miyazaki

0 FI over 5 years ago in reply to Takayuki Miyazaki

TI__Mastermind 21280 points

Hi,

Regarding #2, I have to check with the designers on the exact value of the capacitance.

How fast do you wish to toggle the IO?

As an example, I was able to communicate between two launchpads over SPI clocked at 8MHz with jumper wires.

Thanks,

0 Takayuki Miyazaki over 5 years ago in reply to FI

TI__Genius 10120 points

Hi FI,

Thank you for your efforts. Also, customer would like to know “High-impedance leakage current (VIH condition)” of GPIO. If you will check with the designers, could you also check this, please?

And then, when this GPIO is “input” setting and “OPEN(Floating) ”, they could like to confirm if this pin indicate “Low” or not. Can I have your comments on this. please?

Best regards,

Miyazaki

0 Takayuki Miyazaki over 5 years ago in reply to Takayuki Miyazaki

TI__Genius 10120 points

Hello FI,

I have forgot other additional inquiries about GPIO, sorry.. customer plans to use this device with supply-voltage=2.2V. customer would like to know VIH(min). could you also clarify it, please?

Best regards, Miyazaki

0 FI over 5 years ago in reply to Takayuki Miyazaki

TI__Mastermind 21280 points

Closing the thread because information provided offline.

Bluetooth®︎

Bluetooth forum

CC2652R: Inquiries about CC2652R implementation