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CC1101: packaging counterfeit ? CC1101

glen english
Prodigy 40 points
Part Number: CC1101

Tool/software:

Hi ( this is is my 3rd go at finding the right place ot ask this in TI) - let's get the support problems off my chest first : 

1st       - I submitted to ti-counterfeit@list.ti.com . nope that's for government only

2nd - I submitted a support ticket. nope, must go to 'failure analysis', but cant access my tickets

3rd - try here. Please read below : .. I am considering moving $150k /year worth of high end ADC and DAC from ADI to TI but the customer support has been underwhelming.....

******Anyway- this device the CC1101 I have not seen in this package before : 

 (or see link if doesnt embed the image )

I was asked to troubleshoot  a customer's production.
The TI chip is a CC1101  sub GHz radio chip. am familiar with. 

what I could see was  that the CC1101 chips of the boards in question did not look like the CC1101s I am used to seeing

Instead of classic  QFN, these devices looks like LFCSP (ADI style) .

looks normal  chip : CC1101 T12 BF SO3D G4  (looks like usual TI VQFN mold) 
suspect chip : CC1101   25M02DG 1319 (ADI CSP-like  mold) 

the 'suspect parts' work, but.. they're a little different in  RF behaviour. 

did you make  these in the CSP ? I think these have been built in the past 6 years. 

regards
glen english :-) 

  • +1
    TI__Genius 17995 points

    Hi Glen,

    If you do not have a direct FAE contact then using the E2E forums as the first step is recommended.

    This could potentially be a CC1101 device that used the old RTK packaging, see the following thread:  CC1101: RTK package - Re-marked CC1100? 

    However, these were phased out over 12 years ago. These could be genuine devices but, if so, they are very old - this unit could be from 2013 or 2012.

    Without knowing more about the issues you are seeing it is difficult to comment further, but the RTK package was used at one point (before the current RGP package).

    Regards,

    Zack

  • 0 in reply to ZC
    Prodigy 40 points

    Hi Zack

    thank you very much for the information

    I consider this question now resolved !

    FWIW, same components, the older devices have ~ 2.5dB greater power output.
    I have told the customer if they are having problems with 2.5dB, their systems has design issues.

    With the compromised antennas, I would expect +/- 3dB spread across production, and they need to fix the antenna on the other end. Nevertheless they've got a whole batch that 'work' and newer ones that dont work. (down to the last dB). so, they've got to fix the link budget and antennas


    best regards