## High throughput, High SNR digital delta sigma modulator for fractional-N frequency synthesizer

- Fatemeh Arab Asadi, Mohammad Sharifkhani
- 2015 23rd Iranian Conference on Electrical…
- 2015

@article{Farrokhiyan2009ANH, title={A new high SNR Sigma-Delta Modulator for fractional-N frequency synthesizers}, author={K. Farrokhiyan and Rasoul Dehghani}, journal={2009 6th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology}, year={2009}, volume={01}, pages={596-599} }

- Published 2009 in 2009 6th International Conference on Electrical…

This paper presents a new digital sigma-delta modulator with 16-bit input and a single bit stream output to control a dual modulus divider of a fractional-N frequency synthesizer. The design consists of two stages. The first stage is a second order error feedback Sigma-Delta Modulator that reduces the effective number of the input from 16 to 3 bits and latter stage used as a concentrator to produce a single bit output. The total SNR is more than 100dB while the complexity and OSR of the design… CONTINUE READING