Dear Specialists,
My customer is considering LMX2571 and has questions.
I would be grateful if you could advise.
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(1) When F1F2_MODE=1 and POWERDOWN are used in combination, are there any limitation.
(2) Currently, by toggling TrCtrl 100 μs after return from "POWERDOWN" state,
I believe that PLL locks reliably without resetting FACL_EN
Is it correct?
(3) According to the datasheet 6.5 Electrical Characteristics, Multiplier frequency range is described
MULT input frequency : 10 ~ 30 MHz
MULT output frequency : 60 ~ 130 MHz
If MULT_F1, MULT_F2 = 1 (Bypass), Is it necessary to keep this frequency range?
I am thinking to use OSCin>30MHz, Pre-divider=1, MULT=1 and Post divider=1, is there any problem.
(4) about MULT_WAIT setting
When MULT_F1=1 and MULT_F2=1, is it possible to set MULT_WAIT=0.
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I appreciate your great help in advance.
Best regards,
Shinichi