RF-ADC Threshold and Over Range Settings - 2.6 English

Zynq UltraScale+ RFSoC RF Data Converter Gen 1/2/3/DFE LogiCORE IP Product Guide (PG269)

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2.6 English

As with any ADC, the input analog signals must be kept within the full-scale range of the ADC, and at the correct input levels. Any signals that do not comply with these conditions result in data loss. To help prevent this, the threshold-detector feature can be used to adjust signal chain gains to keep the signal within the ideal full-scale ranges. However, in the event that a signal does exceed the full-scale range, each RF-ADC channel has built-in detection and protection for this with the Over Range and Over Voltage features.

The Over Voltage and Over Range signals are provided to both the interrupt feature on the IP core, as well as to the RF-ADC real-time signals bus on the IP core for direct access to the PL design.