Designing of IIR Filter using Radix 4 Multiplier by Precharging Technique

Infinite impulse response IIR filter designs mainly aims on either low area cost or high speed or reduced power consumption. Infinite Impulse Response filters are the most important element in signal processing and communication. IIR filters can achieve a given filtering characteristic using less memory and calculations than a similar FIR filter. Multipliers are the basic building block in DSP, microprocessors and other applications. The system's performance is entirely dependent upon the multipliers because they have large area, long latency and consume considerable power hence there is a need to design high speed, low power consumption, regular and less area multipliers. The speed of the multipliers can be increased by reducing the number of partial products. Parallel multipliers are fastest among all multipliers. Booth multipliers are the parallel multipliers that operate on signed operands in two's complement form and have high performance, low power consumption and does not suffer from bad regularity. This paper presents an efficient implementation of high speed parallel multiplier using Radix-4 which further used in the designing of IIR filter. Pre charging is implemented to increase the lifespan of electronic components and increase reliability of the high voltage system. Pre charge is intended to minimize propagation delay time. Pre charge of the power line voltages in a high voltage DC application is a preliminary mode which limits the inrush current during the power up procedure. In other systems such as vehicle applications, pre charge will occur with each use of the system, multiple times per day. Ushanandhini | Dr. S. Shivkumar "Designing of IIR Filter using Radix-4 Multiplier by Precharging Technique" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-4 , June 2018, URL: https://www.ijtsrd.com/papers/ijtsrd14208.pdf