Design methodology for a maximum sequence length MASH digital delta-sigma modulator
Xu, Tao and Condon, Marissa
(2009)
Design methodology for a maximum sequence length MASH digital delta-sigma modulator.
In: WCE 2009 - World Congress on Engineering, ICEEE 2009 - The 2009 International Conference of Electrical and Electronics Engineering, 1-3 July 2009, London, UK.
ISBN 978-988-17012-5-1
The paper proposes a novel structure for a MASH digital delta-sigma modulator (DDSM) in order to achieve a long sequence length. The expression for the sequence length is derived. The condition to produce the maximum sequence length is also stated. It is proved that the modulator output only
depends on the structure of the first-order error feedback
modulator (EFM1) which is the first stage of a Multi-stAge noise SHaping (MASH) modulator.