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ADF4159  Continuous Triangular Ramp

Question asked by Jie-Chen on Oct 23, 2017
Latest reply on Nov 1, 2017 by dyoung1

I want to use ADF4159 to generate  a Continuous Triangular Ramp waveform .I see the datasheet of adf4159 can work at Triangle Ramp, fPFD = 100 MHz, ICP = 2.5 mA,Loop Bandwidth = 250 kHz, CLK1 = 3, CLK2 = 26, DEV = 1024,DEV_OFFSET = 8, Number of Steps = 64 (as shown in the figure below).

 

The timeout interval of each step is less than 1us,but locking time of PLL system is dozens of us. Does  this means that in this mode don't need locked in each step? Thank you very much.

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