Newbie question.
I read about output impedance here: http://www.kpsec.freeuk.com/imped.htm
Practical example. I'm looking for a function generator. One I found has an output impedance of 50 ohms and runs on 15V DC voltage. 50 ohms is pretty low, which is good for output impedance because it means little input voltage is lost and lots of it available for the input of another device.
Besides the fact that the device connected to the output should have an impedance of at least 10 times 50, what other information can we derive from the fact that the output impedance is 50 ohms?
For example, if we just know the input voltage and output impedance, can we say how much of the input voltage will be left at the output with no load connected? In the case of the function generator, the amplitude range is 10 volts peak-to-peak. Are those two facts related - i.e. peak-to-peak output voltage and output impedance? Can I measure output impedance somehow?
Sorry if the question is too vague.
I read about output impedance here: http://www.kpsec.freeuk.com/imped.htm
Practical example. I'm looking for a function generator. One I found has an output impedance of 50 ohms and runs on 15V DC voltage. 50 ohms is pretty low, which is good for output impedance because it means little input voltage is lost and lots of it available for the input of another device.
Besides the fact that the device connected to the output should have an impedance of at least 10 times 50, what other information can we derive from the fact that the output impedance is 50 ohms?
For example, if we just know the input voltage and output impedance, can we say how much of the input voltage will be left at the output with no load connected? In the case of the function generator, the amplitude range is 10 volts peak-to-peak. Are those two facts related - i.e. peak-to-peak output voltage and output impedance? Can I measure output impedance somehow?
Sorry if the question is too vague.