wanhammer, l. (1999). dsp integrated circuits

[...]... blank 1 DSP INTEGRATED CIRCUITS 1.1 INTRODUCTION Rapid advancements in electronics, particularly in manufacturing techniques for integrated circuits, have already had, and will undoubtedly continue to have, a major impact on both industry and society as a whole In this book we will discuss various approaches to designing integrated circuits for digital signal processing (DSP) applications Modern DSP systems... common DSP subsystems The problem of designing special-purpose DSP systems is an interesting research topic, but, more important, it has significant industrial and commercial relevance Many DSP systems (for example, mobile phones) are produced in very large numbers and require high-performance circuits with respect to throughput and power consumption Therefore, the design of DSP integrated circuits. .. cover all aspects of the 1 2 Chapter 1 DSP Integrated Circuits design, specification, DSP algorithm, system and circuit architecture, logic, and integrated circuit design Hence, changes in classical design methodologies and in the organization of design teams may be necessary We will therefore discuss the most common design methodologies used for the design of DSP systems We will also present a novel... The book DSP Integrated Circuits is used as a textbook for the course "ApplicationSpecific Integrated Circuits for Digital Signal Processing" given at Linkoping University 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... capacitor (SC) [10] or switched current (SI) circuits Most A/D and D/A converters are today based on SC circuit techniques An important advantage of SC circuits is that they can easily be integrated with digital CMOS circuits on the same chip Recently, analog circuits such as anti-aliasing filters have also become possible to implement on the same chip A fully integrated system-on-a-chip is therefore feasible... marketing and maintenance of the DSP system It is important to consider all costs incurred during the entire life of the system The design of a complex DSP system can be partitioned into two major phases: system design and integrated circuit design, as illustrated in Figure 1.10 These two phases are followed by a manufacturing and testing phase The design of testable integrated circuits is a very important... long to develop and manufacture, so that the market window is lost A standard digital signal processor approach is therefore an economically attractive approach for some types of DSP applications 4 Chapter 1 DSP Integrated Circuits Early standard digital signal processors were based on the Harvard architecture that has two buses and separate memories for data and instructions Generally, standard digital... many DSP applications 1.4 APPLICATION-SPECIFIC ICs FOR DSP The development effort for a large integrated circuit typically ranges between 1 and 10 man-years, depending on the uniqueness of the function, performance constraints, and the availability and performance of design tools The combined advances in system design capability and VLSI technology have made it possible to economically design unique integrated. .. design a new integrated circuit can only be justified when the number of circuits to be manufactured is large, or when the necessary performance requirements are so high that they cannot be met with any other technology In practice, we often find that both arguments are valid, particularly in communication and consumer applications Advances in integrated circuit technology also open new areas for DSP techniques,... used in the integrated circuit design phase The degree of automation of the design process varies widely, from fully automatic to hand-crafted design [14] 1.6.1 Specification And Design Problem Capture Besides a description of the tasks that the system shall perform, the system specification should also include requirements on physical size, power consumption, 12 Chapter 1 DSP Integrated Circuits and . Bit-Serial Addition and Subtraction 482 11.6.2 Bit-Serial Multiplication 482 11.6.3 Serial/Parallel Multiplier 482 11.6.4 Transposed Serial/Parallel Multiplier 485 11.6.5 S/P Multiplier-Accumulator . Digital Signal Processors 3 mainly coding the DSP algorithm either using a high-level language (for exam- ple, the C language) or directly in assembly language. Some high-level design tools. Cathedral I 395 9.5 Implementations Based on Complex PEs 397 9.5.1 Vector-Multiplier-Based Implementations 397 9.5.2 Numerically Equivalent Implementation 399 9.5.3 Numerically Equivalent Implementations