Abstract: An example apparatus includes: first amplifier circuitry having a first output and a second output; second amplifier circuitry having an output; first transistor circuitry having a first terminal and a control terminal; second transistor circuitry having a first terminal and a control terminal, the control terminal of the second transistor circuitry coupled to the output of the second amplifier circuitry and the control terminal of the first transistor circuitry; and voltage-to-delay circuitry having a first input and a second input, the first input of the voltage-to-delay circuitry coupled to the first output of the first amplifier circuitry and the first terminal of the first transistor circuitry, the second input of the voltage-to-delay circuitry coupled to the second output of the first amplifier circuitry and the first terminal of the second transistor circuitry.

Abstract: An analog front end device comprises three transformers. A first transformer has a first input configured to receive an input signal and first and second outputs. The second and third transformers comprise a secondary stage coupled to the first and second outputs. The second transformer has a second input coupled to the first output, a third output coupled to a first device output, and a fourth output coupled to a second device output. The third transformer has a third input coupled to the second output, a fifth output coupled to the second device output, and a sixth output coupled to the first device output. The phase imbalances of the second and third transformers are substantially the same, and the amplitude imbalances of the second and third transformers are substantially the same.

Abstract: An analog front end device comprises three transformers. A first transformer has a first input configured to receive an input signal and first and second outputs. The second and third transformers comprise a secondary stage coupled to the first and second outputs. The second transformer has a second input coupled to the first output, a third output coupled to a first device output, and a fourth output coupled to a second device output. The third transformer has a third input coupled to the second output, a fifth output coupled to the second device output, and a sixth output coupled to the first device output. The phase imbalances of the second and third transformers are substantially the same, and the amplitude imbalances of the second and third transformers are substantially the same.