Page 14 - DSP Integrated Circuits

PREFACE

The book DSP Integrated Circuits is used as a textbook for the course "Application-
Specific Integrated Circuits for Digital Signal Processing" given at Linkoping Uni-
versity. This text is intended to fill a gap in the market for textbooks on design of
digital signal processing systems using VLSI technologies. The intent is to present a
comprehensive approach to system design and implementation of DSP systems
using advanced VLSI technologies. We also try to present a coherent paradigm for
the whole design process, i.e., a top-down design approach is stressed throughout
the book. The emphasis is on DSP algorithms, scheduling, resource allocation
assignment and circuit architectures. We derive an efficient implementation strat-
egy that is based on asynchronous bit-serial processing elements that can be
matched to the DSP algorithm and the application requirements. The aim is to min-
imize power consumption and chip area, but equally important is the use of a struc-
tured design methodology that allows an error-free design to be completed according
to the project schedule. The presentation necessarily represents a personal view,
since there is no unique global view to which everyone in the field agrees.
The textbook presents the design process in a top-down manner. Throughout
the text, three case studies are presented. The three examples are selected in order
to demonstrate different characteristics of common DSP applications. The first case
study involves the design of an interpolator based on lattice wave digital filters. The
major design problems are the complicated scheduling of the operations and the
resource allocation. The second case study is the design of an FFT processor. The
major problem here is the partitioning of the algorithm into appropriate processes
that can be mapped onto the processing elements. The third case study is the design
of a two-dimensional discrete cosine transform for high-definition TV (HDTV). The
major problems here are the high I/O data rate and the high arithmetic work load.
The textbook is aimed for engineers and scientists involved in digital signal
processing, real-time systems, including computer-aided design, application-spe-
cific integrated circuit design, and VLSI technology. The textbook provides the nec-
essary background in DSP that is needed in order to appreciate the case studies.
Of course, it is beneficial if the student has a prior basic understanding of digital
signal processing techniques.
I would like to acknowledge my sincere gratitude to Magnus Horlin, Hakan
Johansson, Johan Melander, Erik Nordhamn, Kent Palmkvist, Tony Platt, Mag-
nus Karlsson, Mikael Karlsson Rudberg, Bjorn Sikstrom, Mark Vesterbacka, and
Torbjorn Widhe for generously providing assistance during the development of the
material presented in this book as well as carefully reading the innumerable ver-
sions of the manuscript.

Lars Wanhammar, Linkoping

xiii