Fractional-N frequency synthesizers based on phase-locked loops exhibit spurious tones
(spurs) that result from interactions between the accumulated output of the divider controller …

The digital multistage-noise-shaping (MASH) ΣΔ modulators used in fractional frequency
synthesizers are prone to spur tone generation in their output spectrum. In this paper, the …

Digital-to-analog converters based on delta-sigma modulators (ΔΣ-modulators) are
reviewed. The structure and working principle of digital sigma-delta converters are …

The present application is a continuation-in-part applica tion of US patent application Ser.
No. 12/229.948 filed Aug. 28, 2008, and claims the benefit of US Ser. No. 12/229,948, which …

In this two-part paper, a design methodology for bus-splitting digital delta-sigma modulators
(DDSMs) is presented. The design methodology is based on error masking and is applied to …

This brief presents a pseudorandom number generator that requires very low resources from
the hardware design point of view. It is based on a chain of digital accumulators whose …

In mixed-signal systems, nonlinear distortion due to nonideal analog circuitry can act on
quantized digital sequences, giving rise to spurious tones. In this brief, generation of …

Digital delta-sigma modulators (DDSMs) are finite state machines; their spectra are
characterized by strong periodic tones (so-called spurs) when they cycle repeatedly in time …

This paper presents a mathematical analysis of the power spectral density of the output of a
nonlinear block driven by a digital delta-sigma modulator. The nonlinearity is a memoryless …

Digital delta-sigma modulators (DDSMs) are finite state machines; their spectra are
characterized by strong periodic tones (so-called spurs) when they cycle repeatedly in time …