When setting up or testing audio equipment, it is often required to present a test tone at the input of the device under test.
I am confused as to how this works with a balanced input on the DUT, if the test tone generator is unbalanced.
An example may be something like a 1kHz tone at +4dBu.
To connect an unbalanced tone generator to a balanced input on some device, do I need to convert the tone generator output into a differential output and thereby increasing the test tone by +6db when received by the audio device. Or should I just create a balanced connection for the test tone, so that a +4dBu signal is carried only on the "hot" side of the connection?
I hope I am expressing myself clearly enough for someone to help enlighten me.
Thanks everyone. Paul H
I am confused as to how this works with a balanced input on the DUT, if the test tone generator is unbalanced.
An example may be something like a 1kHz tone at +4dBu.
To connect an unbalanced tone generator to a balanced input on some device, do I need to convert the tone generator output into a differential output and thereby increasing the test tone by +6db when received by the audio device. Or should I just create a balanced connection for the test tone, so that a +4dBu signal is carried only on the "hot" side of the connection?
I hope I am expressing myself clearly enough for someone to help enlighten me.
Thanks everyone. Paul H