What is a Push Pull Output?/What is a Quadrature output?！

A Push Pull output is an output that allows you to connect either a sinking or sourcing circuit. This type of an output allows you to sink more current than a Totem Pole output and follow the input voltage. A Push Pull output is chosen when an Open Collector output will not work with the controller that is connected to the encoder.

Quadrature output refers to the fact that the signals A and B are separated by 90 degrees of phase shift with A leading B or B leading A depending on the direction of rotation. It does not mean that the output will be 4 times the amount of the Pulses Per Revolution of the encoder. The fact that the signals are 90 degrees out of phase enables the controller to determine the direction that the encoder is spinning. You must use both the A and B signal to have a quadrature output and to get X2 or X4 logic.

Previous：How do I choose the Pulses Per Revolution (PPR)?
Next：What is a Differential Line Driver Output?/What is an Open Collector Output?