Patent ID: 11909411
Assignee: VIAVI SOLUTIONS INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An apparatus to reduce spurs in an analog to digital conversion, the apparatus comprising:
an input configured to receive an analog signal;
a splitter configured to split the analog signal into a first split analog signal and a second split analog signal;
a signal inverter configured to convert the second split analog signal into an inverted second split analog signal;
a first balun configured to provide a differential input of the first split analog signal to the first analog to digital converter;
a first analog to digital converter configured to receive the first split analog signal and generate a first component digital signal;
the signal inverter further comprising a second balun configured to provide an inverted differential input of the second split analog signal as the inverted second split analog signal to the second analog to digital converter;
a second analog to digital converter configured to receive the inverted second split analog signal and generate a second component digital signal; and
a digital subtractor configured to generate an output digital signal with reduced spurs by subtracting a spur in the first component digital signal from a corresponding spur in the second component digital signal.