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external CMOS clock of AD7134

Category: Hardware

In my circuit, the clkvdd is connected to the 1.8V power supply.The circuit diagram is as follows:

Measure the voltage of XTAL2 with an oscilloscope as follows:

The maximum voltage of the input sine wave is 2.34V and the minimum voltage is -0.4V. Does the external input clock meet the requirements under this circuit?

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    •  Analog Employees 
    Mar 16, 2023 in reply to SunflowerF +1 verified

    Hi  ,

    If the crystal oscillator is not in the specified range, the ODR may vary as well and device performance is no longer guaranteed to be within specs.
    In the evaluation board for AD7134, SIT1602BC…