Functional simulation of color signal processor for VTR by digital dynamics simulation language

Abstract

AbstractWith the development of semiconductor integration, the technology has arrived at the stage of the system‐on‐chip. With the widespread use of application specific IC (ASIC), the small‐quantity production of diversified types is required. Then it is important to reduce the design period for the mixed analog/digital circuit.VTR color signal processing LSI is a typical mixed analog/digital circuit. It has the scale of 500 analog elements and 800 digital elements, and it is too time‐comsuming to simulate the operation of the whole LSI by the conventional circuit simulator. Thus, a functional simulator is required for the large‐scale mixed analog/digital LSI.This paper proposes a functional simulation, employing techniques of continuous system simulation. The technique is applied to the design of a mixed analog/digital circuit, where the conventional method has been unsatisfactory, and the method is shown to be useful in the Functional design of the circuit. The method is based on the modeling of the mixed analog function/circuit, and can be applied to the VTR color signal processing LSI.The functional simulation can easily be performed with the complete knowledge of the analog function. Consequently, the method can contribute greatly to the quality improvement of the design and the reduction of the design period.