I'd like to confirm the output frequency range of ADL5373. According to the datasheet, the output frequency range is 2300MHz to 3000MHz. And the modulation bandwidth is >500MHz. Does the output frequency range include the bandwidth? (It can support 2550MHz to 2750MHz for the carrier, in case of 500MHz bandwidth.) Or is 2300MHz to 3000MHz for the career frequency?
The 2300 to 3000MHz range is for the carrier LO frequency. Take a look at this EZ post by my colleague Tony regarding the sister part the ADL5375; the same thinking applies to the ADL5373.
Quadrature Modulator Modulation Bandwidth
Thank you for your answer. How should we estimate frequency response of output when LO=3000Mz and BW=500MHz, in that case? Fig. 3 of ADL5373 datasheet shows only 2300MHz to 3000MHz. There is no information about SSB OUTPUT POWER about 3000MHz to 3250MHz.
You will need to combine Figures 4 and 5 to extrapolate out the power at 3250MHz. BB roll off will be 0.5dB and we can assume 2.5dB roll off from 3000MHz to 3250MHz; so total will be 3dB roll off. See example picture below.
Thank you for your answer.
Thanks & Regards,