Fine-Grain Pipelined Asynchronous Adders for High-Speed DSP Applications
نویسندگان
چکیده
A new asynchronous pipeline scheme (called LPHC), and two new pipelined asynchronous adder implementations, are introduced for high-throughput applications such as DSP’s for multimedia processing. The pipeline scheme is targeted to dynamic datapaths. A novelty of the approach is that it uses decoupled control for pull-up and pull-down stacks. The adders are pipelined at the gate-level and achieve very high throughput: 930–1023 million additions per second in a 0:6 CMOS process. These results are expected to scale to several Gigaoperations per second in more modern technologies.
منابع مشابه
Design and Implementation of Digital Demodulator for Frequency Modulated CW Radar (RESEARCH NOTE)
Radar Signal Processing has been an interesting area of research for realization of programmable digital signal processor using VLSI design techniques. Digital Signal Processing (DSP) algorithms have been an integral design methodology for implementation of high speed application specific real-time systems especially for high resolution radar. CORDIC algorithm, in recent times, is turned out to...
متن کاملDesign and implementation of an Asynchronous Controller for FPGA Based Asynchronous Systems
In a clause of combinational circuits, the throughput can be increased, without (wave) pipelining, by introducing data dependent delay feature thus avoiding the worst case delay. That is, in circuits like multipliers and adders which are the basic building blocks of any DSP system; the processing delay can be varied according to the magnitude of the input data. This makes the circuit asynchrono...
متن کاملProgrammable Asynchronous Pipeline Arrays
We discuss high-performance programmable asynchronous pipeline arrays (PAPAs). These pipeline arrays are coarse-grain field programmable gate arrays (FPGAs) that realize high data throughput with fine-grain pipelined asynchronous circuits. We show how the PAPA architecture maintains most of the speed and energy benefits of a custom asynchronous design, while also providing post-fabrication logi...
متن کاملHigh -speed Vlsi State -space Orthogonal Iir Digital Filters Using Matrix Lookahead
The increasing demands for multi-media and wireless communication applications have had much impact on design of high-speed and low-power modern DSP systems. Orthogonal IIR digital lters can achieve sharp transition band and have good nite word-length behavior and are used in many modern DSP applications such as mobile communications. However, Cordic based ne-grain pipelined true orthogonal IIR...
متن کاملSupercharge Your DSP with Ultra-Fast Floating-Point FFTs
Engineers targeting DSP to FPGAs have traditionally used fixed-point arithmetic, mainly because of the high cost associated with implementing floating-point arithmetic. That cost comes in the form of increased circuit complexity and often degraded maximum clock performance. Certain applications demand the dynamic range offered by floating-point hardware but require speeds and circuit sizes usua...
متن کامل