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Dear Sirs: I am trying to understand what output levels I should see on a properly configured device. If i use the "RF Output Parameters" tables I see the following. The voltage gain of the device is given as approximately -2.5 dB "Output RMS voltage over input I (or Q) rms voltage", over a range of interest to me, with the I and Q inputs defined as 98mV RMS. This would seem to indicate the OP is to be 73.5 mV RMS. In the table there is no definition on the condition of the output port. In other parts of the data sheet, specifically Table 4, the output is expressed in dBm. I think this usually implies singled ended 50 ohm impedance. Table 4 lists the output as power (dBm), and over an LO range of 1 - 2 GHz the output is shown to be -4 dBm. (The output is constant over a range of LO powers according to Table 4). -4 dBm sine wave on 50 ohms implies the voltage is 141 mV RMS. This is almost 2x the output voltage I calculate (73.5 mV) from the table. I must not be understanding the data sheet correctly. Your help is appreciated. Charles Robidart
