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AFE7444: AFE7444 EVM do not work.

?? ?
Prodigy 10 points
Part Number: AFE7444

Tool/software:

HELLO , I have some question about AFE7444 EVM.

When I turn on the module, D7 LED did not turn on.

So, Is there any manual about AFE7444  order of operation?

Please check.

Thank you.

  • 0
    TI__Genius 17831 points

    Hi Jiwon,

    The D7 LED is not expected to be on when first powering the board. This is the LMK PLL2 locked LED and will only turn on when the LMK is programmed and you are using on board clocking. Are you programming the LMK and not seeing the LED turn on? 

    For additional assistance on bringing up this part you can also follow the bringup video's, which are available in the AFE7444 One Release folder. The link below can be used to request access to the One Release folder.

    https://www.ti.com/drr/opn/AFE7444-DESIGN 

    I did also want to mention that you can use TI's latest RF sampling transceiver, AFE790x/AFE795x family devices for this application. AFE79xx has more channels, performance, and bandwidth at lower power per channel and lower cost when compared to AFE74xx. You can request access to full datasheet and other resources of AFE79xx here: https://www.ti.com/drr/opn/AFE79XX-HSC-DESIGN. 

    Regards,

    David Chaparro