Download Power Point Document

FPGA Controlled Amplifier Module
PC-based Spectrum Analyzer
May06-14
Abstract
Previous senior design teams developed an amplifier board for Teradyne Corporation. This board will boost the input signal to a computer-based spectrum analyzer also designed by a previous senior
design team. The assembly of the amplifier needs to be finished, and the board must be successfully powered up and debugged. Teradyne needs this board to be thoroughly tested to ensure it will
meet specifications. Solutions should be proposed for any errors discovered during testing, and as time allows, these solutions should be implemented and the board re-tested.
Introduction
Approach and Considerations
Problem Statement
Operating Environment
Proposed Approach
Testing Considerations
•Amplifier prototype must be assembled
•Board must be thoroughly tested
•Solutions must be proposed to flaws
•Climate-controlled lab
•Temperature: 0~50°
•Low electro static discharge
Intended Use and Users
Limitations
•Amplifier Performance Testing
•FPGA Performance Testing
•DAC Control Testing
•Integration Performance Testing
•Amplifier for spectrum analyzer
•Engineers at Teradyne Corporation
•Potential for future commercialization
•The design must meet specifications
•Must use the existing design
•Equipment must be available on campus
•
•
•
•
•
•
•
End Product and Deliverables
Assumptions
•Assembled and functional prototype
•Tested and corrected design
•Test plans and reports
•Documentation of recommendations
•This version will not be sold commercially
•Previous board design is valid
•Appropriate test equipment is available
Debug board design
Research technologies used
Assemble prototype
Develop test plans
Simulate circuit for debugging
Automate testing
Product integration
Typical Testing Setup
Input
GPIB
Power
Output
Output
Two-Stage Op-Amp
Input
Comparator
LabVIEW
DC correction voltage
Support Technologies
•Two-stage operational amplifier
•Offset correction algorithm (VHDL)
•FPGA digital control
FPGA
Amplifier Block Diagram
Project Requirements
Design Constraints
Financial Requirement
• Tests will verify all specifications
• Results will be well-documented
• Tests will be repeatable
• Tests must use equipment available on campus
• Solutions must accommodate existing design
Description
Functional Requirements
Specification Table
Support signals from 0Hz - 100MHz
Amplification gain of up to 60dB
Under 1mV DC-offset after calibration
Low noise and distortion
Project Milestones
Assembled and functional prototype
Completed test plans
Completed testing and test reports
Documentation of proposed solutions
LabVIEW
PSpice
Altera Quartus II
PCB Express
Time domain testing
Frequency domain testing
Estimated Resources
Design Objectives
•
•
•
•
•
•
•
•
•
•
Design Technologies
DAC
•
•
•
•
Amplifier
Spectrum Analyzer
Total
Input
Gain
Harmonic
Frequency
Settings
Distortion
Noise
Range
(dB)
(dB)
(nV/rtHz)
DC – 1kHz
6, 20, 40, 60
< - 105
1.5
> 1kHz - 20 kHz
6, 20, 40, 60
< - 95
1.5
> 20kHz – 100kHz
6, 20, 40
< -85
2.5
> 100kHz - 1MHz
6, 20, 40
< - 80
3.5
> 1MHz - 10MHz
6, 20, 40
< - 70
3.5
> 10MHz – 20MHz
6, 20
< -65
3.5
> 20MHz – 50MHz
6, 20
< -50
5.0
> 50MHz – 100MHz
6, 20
< -40
5.0
Cost
FPGA
$
Components
$ 13.2
Poster
$
Total Cost
Available
Personal Effort
60
30
$103.2
Project Schedule
Summary
The FPGA Controlled Amplifier Module will provide a high-quality amplified input signal to the computer-based spectrum analyzer. Rigorous testing and will ensure that the amplifier board can provide
this input signal with sufficient gain and bandwidth, and minimal distortion and noise. The tests will result in a list of improvements and corrections that can be made to the board in order to meet or
improve the performance specifications.
General Information
Team Members
Client
Acknowledgement
Faculty advisor
Dr. Chris Chu
Jesse Bartley
Zhi Gao
Teradyne Inc.
Jason Boyd
Michael Hayen
JiWon Lee
Jacob Mertz
Dr. Robert Weber
Ramon De La Cruz
Dr. Randy Geiger
Because Technology Never Stops