Eugen_E
Full Member level 6
Hello,
I want to ask if its possible to generate quadrature clock signals using 2 input signals with a small phase shift between them, applied to 2 PLLs like in the image.
I know about obtaining quadrature signals using 2 flip flops and an inverter, but I want to use the above circuit - with PLL, because the maximum frequency of the VCO in the PLL is limited, and I can't aford the frequency division with 2.
Please tell me if this will work, and if the frequency dividers implemented as cascaded flip-flops should be reset at the start, to ensure proper phase shift, or the PLLs wil take care of this?
Thank you.
I want to ask if its possible to generate quadrature clock signals using 2 input signals with a small phase shift between them, applied to 2 PLLs like in the image.
I know about obtaining quadrature signals using 2 flip flops and an inverter, but I want to use the above circuit - with PLL, because the maximum frequency of the VCO in the PLL is limited, and I can't aford the frequency division with 2.
Please tell me if this will work, and if the frequency dividers implemented as cascaded flip-flops should be reset at the start, to ensure proper phase shift, or the PLLs wil take care of this?
Thank you.