APPARATUSES AND METHODS INVOVLING INDEPENDENT MODULATIONS OF A DIGITAL CLOCK SIGNAL FOR DIFFERENT FREQUENCY DOMAINS

An example apparatus that employs circuitry operating in response to digital clock signal circuitry. The apparatus includes first circuitry (102) and second circuitry (104). The first circuitry (102) produces a high-frequency digital clock signal (105) characterized by a high frequency which carries radiative noise interference and by a modulated low-frequency digital clock signal (103) characterized by a low frequency modulated by a first type of modulation. The second circuitry (104) produces another low-frequency digital clock signal (109) by combining a disparate modulation signal (107) and a feedback signal derived from the other low-frequency digital clock signal (109), wherein the disparate modulation signal (107) is characterized by modulating the feedback signal via a second type of modulation that is independent of the first type of modulation and by cancellation/blocking of the radiative noise interference manifested by the circuitry operating in response to the digital clock signal circuitry.