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AD9777 Issue

Question asked by shmulw on Feb 12, 2013
Latest reply on Feb 13, 2013 by Tguy



I have read the AD9777 Data sheet and i have some quastions regarding the correct use of the device with the evaluation board.


1)my purpse using the device is to create a 140 MHZ square wave output (IN OUT1) , and my quastion is if i can creat this output using the device in most basic way.

meaning: 140 MHZ square wave 16-bit input, with 280 MHZ clock which is driven from a single-ended source (CLKIN) .

the configuration that i want to use is :"pll disabled, one-port mode"

is this configuration as i described it should  work ?


2)it is written in the data sheet that when i am using :"pll disabled, one-port mode", i should note that 1X interpolation is not available in the one-port mode", what does it mean if i am not using the PLL?



thank you so much for your answers,