Does the ADF4110 compare the rising edge of REF and the rising edge of RFinA and align their phases, or does the ADF4110 compare the falling edges of REF and the falling edge of RFinA and align their phases?
Hello I have a question about the output of the ADF4110 charge pump. When the signals are input to REFIN and RFINA and locked, the CP output may be fixed to High or Low when the RFINA input is lost. I want to fix everything to High under this condition.
RF_IN_A and RF_IN_B of ADF4110 are differential inputs with 500ohm resistance fixed at 1.6V. Figure 29. Table 4. Pin Function Descriptions are shown as follows. RFINA Input to the RF Prescaler. This small-signal input is ac-coupled from the VCO.
I'm a DFAE in Japan. Our customer would like to know the minimum frequency of REFin and RFin. We understand the slew rate has to keep >30V/us for RFin for lower than 80MHz and 100V/us for REFin for lower than 5MHz. What is the lower limit of…