My customer request your confirmation about their schematic.
They used AD9251-65 and ADA4937-1 to LTE ICS Repeater.
But now they want to change ADC from AD9251-65 to AD9258-125.
As you know, these two devices are pin compatible, so they want to use same schematic which they used with AD9251-65 before.
Would you confirm attached their new schematic with AD9258-125 and ADA4937-1 , and let me know your concerns and opnions?
(they will use 120MHz for Sampling frequency and IF band will be in between 120MHz and 180MHz.)
Please advise me.
If you have any questions, please let me know.
Schematic for the AD9258 looks good. If they seeking better linearity performance, they may consider using another amplifier since ADA4937-1 linearity performance falls off between 120-180 MHz. Perhaps the ADA4939 would provide better linearity performance in this frequency range.