Digital Signal Processor: Overview: The Device, Support Facilities, and Applications

The digital signal processor (DSP) is a new integrated circuit designed by Bell Laboratories and made by Western Electric Company. The device is one of the most complex high-performance circuits developed to date and will have a variety of telecommunications applications. This paper summarizes the capabilities of the DSP, describes user development tools, and lists potential applications. The Bell System is rapidly applying digital technology to transmission, switching, and station equipment. When signals are encoded digitally, they are easily manipulated by computers and other systems that incorporate advances in very-large-scale integrated circuit technology (VLSI). The VLSI advantages include small size, high reliability, low cost, and low-power consumption. As this trend continues, it is possible to perform previous functions, as well as new ones not possible 1431 z2 Fig. 1--Second-order filter section.