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Can the ad9177 output two 9.8GHz analog signals by interpolation?

Category: Hardware
Product Number: AD9177

Does the chart above refer to conversion rates for DAC core?Does the ad9177 support each DAC core at 9.8GHz using dual DAC cores?

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  • Hi,

    AD9177 has max clock rate of 12GSPS and can output a fundamental signal at max 6GHz in the first Nyquist zone. 

    There will be images at higher frequencies in the higher order Nyquist zones.

    The fundamental output frequency and clock sample rate can be set to produce and use an image at desired frequency.

    For example fs = 12GSPS and fout= 2.2GHz, there will be an image at 9.8 GHz.

    However, signal amplitude and quality at image frequency would be lower compared to fundamental due to DAC output sinc filter and usable analog bandwidth (8 GHz for AD9177).

    Hope this answers your question.

Reply
  • Hi,

    AD9177 has max clock rate of 12GSPS and can output a fundamental signal at max 6GHz in the first Nyquist zone. 

    There will be images at higher frequencies in the higher order Nyquist zones.

    The fundamental output frequency and clock sample rate can be set to produce and use an image at desired frequency.

    For example fs = 12GSPS and fout= 2.2GHz, there will be an image at 9.8 GHz.

    However, signal amplitude and quality at image frequency would be lower compared to fundamental due to DAC output sinc filter and usable analog bandwidth (8 GHz for AD9177).

    Hope this answers your question.

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