1
\$\begingroup\$

In a function generator, when I set Zout to be 50 Ohm, and Vpp is 1V. Is this Vsource, or the Vload when I have a matching load of 50 Ohm?

schematic

simulate this circuit – Schematic created using CircuitLab

\$\endgroup\$
1
  • \$\begingroup\$ On almost every function generator that will be the Vload voltage when you load it with 50 ohms. So not 100 ohms as in your schematic ! \$\endgroup\$ Jan 25, 2016 at 18:47

1 Answer 1

2
\$\begingroup\$

Typically, when you set the 50R output impedance on a signal generator, it assumes that the load is also 50R. Therefore, you will get 1 Vpp with a 50R load and 2 Vpp open-circuit.

Some function generators allow you to specify the load impedance, so the SG knows to calculate the correct voltage.

From Agilent 33220A Manual:

enter image description here

\$\endgroup\$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.