Reducing spurs in analog to digital and digital to analog conversions

An apparatus to reduce spurs in a digital to analog conversion, the apparatus comprising:

• an input configured to receive a digital signal;
• a first digital to analog converter configured to receive the digital signal and generate a first component analog signal;
• a first balun configured to receive a differential input of the first component analog signal from the first digital to analog converter and output the first component analog signal to an analog combiner based on the differential input;
• a signal inverter configured to convert the digital signal and generate an inverted digital signal;
• a second digital to analog converter configured to receive the inverted digital signal and generate a second component analog signal;
• a second balun configured to receive an inverted differential input of the first component analog signal from the second digital to analog converter and output the second component analog signal to the analog combiner based on the inverted differential input;
• and
• the analog combiner configured to generate an output analog signal with reduced spurs by subtracting a spur in the first component analog signal from a corresponding spur in the second component analog signal.

An apparatus to reduce spurs in signal conversion, the apparatus comprising:

• a first converter configured to generate a first converted output component signal from an input signal;
• a first balun configured to provide a differential input of the input signal to the first converter;
• a signal inverter configured to generate an inverted input signal from the input signal;
• a second converter configured to generate a second converted output component signal from the inverted input signal, wherein the first converter and the second converter are embedded within a single integrated circuit;
• a second balun configured to provide an inverted differential input of the inverted input signal to the second converter;
• and
• an output combiner configured to generate a converted output signal with reduced spurs by subtracting a spur in the first converted output component signal from a corresponding spur in the second converted output component signal.