Apparatuses and methods for providing a signal with a differential phase mixer

An apparatus comprising:

• a phase interpolation circuit including first and second phase mixer circuits and configured to provide an output signal based on corresponding outputs of the first and second phase mixer circuits, the first and second phase mixer circuits including corresponding first inverters, corresponding second inverters, corresponding third inverters, and corresponding fourth inverters,
• the corresponding first inverters of the first and second phase mixer circuits configured to receive, respectively, a first input signal and a complimentary first input signal, each of the corresponding first inverters of the first and second phase mixer circuits configured to be controlled by a first control signal received, via the corresponding second inverter, at a non-inverting control input of the corresponding first inverter,
• the corresponding first inverters of the first and second phase mixer circuits configured to provide corresponding first internal output signals to corresponding output nodes of the first and second phase mixer circuits,
• the corresponding third inverters of the first and second phase mixer circuits configured to receive, respectively, a second input signal and a complimentary second input signal, each of the corresponding third inverters of the first and second phase mixer circuits configured to be controlled by a second control signal received, via the corresponding fourth inverter, at an inverting control input of the corresponding third inverter,
• the corresponding third inverters of the first and second phase mixer circuits configured to provide corresponding second internal output signals to the corresponding output nodes of the first and second phase mixer circuits,
• the corresponding output nodes of the first and second phase mixer circuits configured to output, respectively, first and second intermediate signals from the corresponding outputs of the first and second phase mixer circuits.

An apparatus comprising:

• a phase interpolation circuit including first and second phase mixer circuits configured to provide an output signal based on corresponding outputs of the first and second phase mixer circuits, the first and second phase mixer circuits including corresponding first inverters, corresponding second inverters, corresponding third inverters, and corresponding fourth inverters,
• the corresponding first inverters of the first and second phase mixer circuits configured to receive, respectively, a first input signal and a complimentary first input signal, each of the corresponding first inverters of the first and second phase mixer circuits configured to be controlled by a first control signal received, via the corresponding second inverter, at a non-inverting control input of the corresponding first inverter,
• the corresponding third inverters of the first and second phase mixer circuits configured to receive, respectively, a second input signal and a complimentary second input signal, each of the corresponding third inverters of the first and second phase mixer circuits configured to be controlled by a second control signal received, via the corresponding fourth inverter, at an inverting control input of the corresponding third inverter,
• the first and second phase mixer circuits including corresponding output nodes configured to output, respectively, first and second intermediate signals from the corresponding outputs of the first and second phase mixer circuits,
• the first intermediate signal output from the corresponding output node of the first phase mixer circuit based on the corresponding first and second input signals received by the first phase mixer circuit,
• the second intermediate signal output from the corresponding output node of the second phase mixer circuit based on the corresponding first and second input signals received by the second phase mixer circuit.