LMX2572: The output is fixed frequency when configuring in automatic ramp mode

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Part Number: LMX2572

I am using LMX2572 for sweeping frequency from 2500 MHz to 2590 MHz. For that Iam using divide by 2 at output which is converting VCO frequency from 5000 MHz to 5180 MHz.

 HexRegisterValues2572.txt

The above configuration I am using. However I am getting a fixed end frequency i.e. 2590 MHz. I am not getting a sweep pattern. Is my settings OK?

4 Replies