6 AAF design conclusion

Understanding all of the different factors, parameters and trade-offs involved in designing an AAF between an FDA and RF ADC can be more difficult than it seems. The design example described in this article gives each parameter equal weight; therefore, the values chosen represent the interface performance for all of the design characteristics. In some designs, you may choose different values to optimize SFDR, SNR or input drive level depending on system requirements. Keep all of these necessary points in mind so that your next AAF doesn’t go resonant.