A HIGH-FIDELITY DECIMATOR CHIP FOR THE MEASUREMENT OF SIGMA-DELTA MODULATOR PERFORMANCE

Citation
I. Kale et al., A HIGH-FIDELITY DECIMATOR CHIP FOR THE MEASUREMENT OF SIGMA-DELTA MODULATOR PERFORMANCE, IEEE transactions on instrumentation and measurement, 44(5), 1995, pp. 933-939
Citations number
11
Categorie Soggetti
Engineering, Eletrical & Electronic","Instument & Instrumentation
ISSN journal
00189456
Volume
44
Issue
5
Year of publication
1995
Pages
933 - 939
Database
ISI
SICI code
0018-9456(1995)44:5<933:AHDCFT>2.0.ZU;2-F
Abstract
This paper reports on results from the algorithmic design and simulati on of a two-path polyphase decimation filter with 24-bit accuracy over the frequency range from de to 15.2 kHz, The filter is suited for ver y high precision data conversion and measurement applications. The dev ice reported in this paper has been designed for use with a fourth-ord er, single-loop, Sigma Delta modulator running at 4096 kHz. Results of floating and fixed-point simulations, architectural design, comparati ve bit-level simulations and silicon implementation of the decimator a re also reported, together with a sample baseband measurement of a fou rth-order modulator.