The user asked if an 8dBm, 10MHz signal can be used as the single-ended CMOS input (REFA) for the AD9548. The final answer indicates that for VDD = 3.3V, the peak-to-peak voltage (1.58V) is less than the CMOS input high threshold (1.9V), so the signal cannot be reliably recognized. The user concluded that an additional amplification stage is required.
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