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LMX8410L: Recommended initial power up sequence

Prodigy 20 points

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Part Number: LMX8410L

Hi,

I have an LMX8410L and the recommended initial power up sequence mention somehow, two ways of doing the initial programming; Should the reset and subsequent registers R127 and R6 be programmed? Or is it enough with the reset?.

Attached cutout of the mentioned.

Thanks & regards.

  • Hi Camilo,

    If you use the internal LO, the programming sequence is as follows:

    1. Vcc power up the device

    2. Program R0[1], RESET_PLL = 1. This will reset all the PLL related registers.

    3. Program R0[1], RESET_PLL = 0. To remove reset.

    4. Follow datasheet suggested programming sequence 2 to 5.

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