Hi All!,
I designed this board to have multiple balanced outputs from a single differental input signal.
It is based on an NE5532 l differential amplifier, (or integrated like INA134), and balanced inverting output buffers made with 6k8 resistors for gain set (unity), and 75 ohm output resistors. (also made with NE5532).
I have built a version with one input and one output, and worked fine. But the version with multiple outputs distorts the signal.. . So there must be a design error... if you can see the picture...
The output of the differential amplifier goes directly to the inverting input of each output buffer... maybe the mistake is there??
Any help much appreciated
JAY X
I designed this board to have multiple balanced outputs from a single differental input signal.
It is based on an NE5532 l differential amplifier, (or integrated like INA134), and balanced inverting output buffers made with 6k8 resistors for gain set (unity), and 75 ohm output resistors. (also made with NE5532).
I have built a version with one input and one output, and worked fine. But the version with multiple outputs distorts the signal.. . So there must be a design error... if you can see the picture...
The output of the differential amplifier goes directly to the inverting input of each output buffer... maybe the mistake is there??
Any help much appreciated
JAY X