EDN

Building FPGA-based digital downconverters with graphical design tools

High bandwidth digital downconverters (DDCs) are critical components in many high-performance systems, including receivers of modulated communications, medical imaging devices, and low-level RF ...
EDN

FPGA-Based FIR Filters using Distributed Arithmetic

M. Martinez-Peir, R. Colom, F. Ballester, and R. Gadea are teachers with a focus on digital applications at the Technical University of Valencia, Spain. They are currently working on video compression ...
Design-Reuse

Optimizing Up/Down Conversion with FPGA Techniques

Digital upconverters (DUCs) and digital downconverters (DDCs) are important components of every modern wireless base station design. While many DUC and DDC designs are available, there is a clear call ...
Design-Reuse

Mapping LMS Adaptive Filter IP Core to Multiplier-Array FPGA Architecture for High Channel-Density VOIP Line Echo Cancellation

The LMS adaptive filter is the main functional block in high channel-density line echo cancellers for VOIP. In this paper, we describe an LMS adaptive FIR filter IP and estimate its performance when ...
Embedded

Building an FPGA-based Digital Down Converter

This “Product How-To” article focuses how to use a certain product in an embedded system and is written by a company representative. The digital downconverter (DDC) has become a cornerstone technology ...
Electronic Design

Digital Filter Design

Digital signal processors (DSPs) continue to receive a great deal of attention in new product design. For example, digital filter design reflects the importance of understanding and using this ...