Real-Time Digital Oscilloscope Implementation in 90nm CMOS Technology FPGA

This paper describes the design of a real-time audiorange digital oscilloscope and its implementation in 90nm CMOS FPGA platform. The design consists of sample and hold circuits, A/D conversion, audio and video processing, on-chip RAM, clock generation and control logic. The design of internal blocks and modules in 90nm devices in an FPGA is elaborated. Also the key features and their implementation algorithms are presented. Finally, the timing waveforms and simulation results are put forward.

Authors:

• Nasir Mehmood
• Jens Ogniewski
• Vinodh Ravinath

Keywords:

• CMOS
• VLSI
• Oscilloscope
• Field Programmable Gate Array (FPGA)
• VHDL
• Video Graphics Array (VGA)

References:

[1] He Zhiqiang, Zeng Wenxian, Li Jianke, The Eighth International
Conference on Electronic Measurement and Instruments ICEMI-2007
"An Embedded Virtual Digital Storage Oscilloscope with 1GSPS".
[2] Wyne Wolf " FPGA Based System Design" Pearson publisher Printice
Hall.
[3] Nasir Mehmood, Jens Ogneewski, Vinodh Ravinath, Project Report
"Digital Oscilloscope" Group 02, Year 2005/First Semester
ISY/LiTH.
[4] Project Report by Amr Mohamed, Fady, Kareem, Gamal, Mazen and
Sherief , "VHDL implementation of oscilloscope usig FPGA",
Alexandria University.