Flexible laboratory setup for DAC experimentation
Alfredo P\'erez Vega-Leal, Manuel G. Satu\'e

TL;DR
This paper reviews and demonstrates a flexible, low-cost laboratory setup for testing various digital-to-analog conversion techniques, including multiplexing, high-speed DACs, and sigma-delta modulation, using FPGA technology.
Contribution
It introduces a prototype DAC system based on time interleaved sigma-delta modulation implemented on an FPGA, facilitating experimentation with different DAC schemes.
Findings
Analog multiplexing enhances DAC testing flexibility
The FPGA-based prototype successfully implements sigma-delta modulation
The setup enables comparison of various DAC techniques efficiently
Abstract
Analog multiplexing appears to be a promising solution for modern transmitters, where speed is the primary limitation. The objective is the development of a low-cost solution to compare different digital to analog (DAC) schemes. In particular, analog multiplexing techniques, high-speed single-DAC, Sigma-delta modulation, Dynamic element matching are considered. The work presents a review of these techniques and shows a prototype of a time interleaved sigma delta modulation based DAC based on a commercially available Field Programmable Gate Array system.
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Taxonomy
TopicsAnalog and Mixed-Signal Circuit Design · Advancements in PLL and VCO Technologies · Advanced Power Amplifier Design
