The Multi-stAge noise SHaping Digital Delta-Sigma Modulator (MASH DDSM), which is
commonly used as a divider controller in a fractional-N frequency synthesizer, can produce …

In fractional phase-locked loop driven by ΣΔ modulators there can be spurious tones in the
power spectral density (PSD) of output signals even if the PSDs of the sequences used to …

Fractional-N frequency synthesizers contain a divider controller which implements the
fractional division. The interaction between the quantization noise from the divider controller …

Static mismatch between the charge pump up and down currents in a fractional-N frequency
synthesizer is known to elevate the in-band noise floor and to produce spurs. Offset current …

Fractional-N frequency synthesizers can exhibit a phenomenon called wandering spurs
which is undesirable in many applications. This paper presents experimental confirmation of …

Few people know what wandering spurs are; fewer still know how to get rid of them. This
book, which is written by those who raised awareness of wandering spurs, explained how …

In general, since the in-band noise of phase-locked loops (PLLs) is mainly caused by
charge pumps (CPs), large-size transistors that occupy a large area are used to improve in …

Secara umum, karena kebisingan in-band dari loop fase-terkunci (PLL) terutama
disebabkan oleh pompa muatan (CP), transistor berukuran besar yang menempati area …

In this chapter, the fractional-N frequency synthesizer considered and the models of it used
in the simulations in this book are elaborated. Nonlinearity will cause extra noise …

Reducing and ultimately eliminating nonlinearity-induced spurious tones (spurs) is a key
motivation for the design of novel divider controllers for fractional-N frequency synthesizers …