AD9265 cmos clock driver

How can i interface AD9265 with CMOS single ended clock driver without using transformer ?

do i need a clock driver ? actually i am driving my clock from FPGA cyclone V.

Do you have any design file which interface this adc to cyclone V ?

What differential amplifier should i use for single ended analog input (AD8375/AD8370/ADA4938) ?

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  • 0
    •  Analog Employees 
    on Jul 1, 2017 1:34 AM

    You can drive the clock input single ended. All you need to do is AC couple the inputs as shown in the data sheet.

    That being said, the AD9265 gets the best performance with differential input.

    You can drive the clock from the FPGA, but I highly discourage this. The FPGA output will have terrible jitter performance which will affect the converter. A clean clock source should be used.

    If you are ok with the performance hit from a low-quality clock source (AKA FPGA), you can use the AD9515 for the CMOS driver. 

    I do not have any design files for this converter, but I can take a look at your Verilog when you are ready.

    What is your input signal like? This will help me narrow down the list. 

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  • 0
    •  Analog Employees 
    on Jul 1, 2017 1:34 AM

    You can drive the clock input single ended. All you need to do is AC couple the inputs as shown in the data sheet.

    That being said, the AD9265 gets the best performance with differential input.

    You can drive the clock from the FPGA, but I highly discourage this. The FPGA output will have terrible jitter performance which will affect the converter. A clean clock source should be used.

    If you are ok with the performance hit from a low-quality clock source (AKA FPGA), you can use the AD9515 for the CMOS driver. 

    I do not have any design files for this converter, but I can take a look at your Verilog when you are ready.

    What is your input signal like? This will help me narrow down the list. 

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