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FPGA Controlled Amplifier Module May 06-14. Team Members Jesse Bartley, CprE Ji w on Lee, EE Michael Hayen, CprE Zhi Gao, EE Client: Teradyne Corp. Faculty advisor: Dr. Chris Chu February 9th , 2005. Presentation Outline. Introductory Materials Project Activity Description

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Fpga controlled amplifier module may 06 14
FPGA Controlled Amplifier ModuleMay 06-14

  • Team Members

    • Jesse Bartley, CprE

    • Jiwon Lee, EE

    • Michael Hayen, CprE

    • Zhi Gao, EE

  • Client: Teradyne Corp.

  • Faculty advisor: Dr. Chris Chu

    February 9th , 2005


Presentation outline
Presentation Outline

  • Introductory Materials

  • Project Activity Description

  • Resources and Schedules

  • Closing Materials

May 06-14


List of terms and definitions
List of Terms and Definitions

  • Bill of Materials – List of Components and their cost

  • DAC – Conversion of a digital signal to an analog sampled signal

  • DC-offset– given signal source does not have the correct 0-crossing but shifted down or up.

  • FPGA – Field programmable gate arrays, allows us to control some the circuits automatically

  • Gain – The ratio of the output amplitude to the input amplitude

  • HDL – Hardware Description Language

  • Noise – Undesired interference in signals

  • Spectrum Analyzer – A computer-based tool that analyzes signals in the frequency domain

  • THD – Total harmonic distortion, the ratio between the powers of all harmonic frequencies above the fundamental frequency

May 06-14


Acknowledgement
Acknowledgement

  • Teradyne Corporation

    • Jacob Mertz

    • Ramon De La Cruz

    • Steven Miller

  • Additional Help

    • Jason Boyd

    • Dr. Robert Weber

May 06-14


Problem statement approach
Problem Statement & Approach

  • Problem statement:

    • To complete and test the FPGA controlled Amplifier for PC based Spectrum Analyzer developed by previous team

  • Approach:

    • Understand existing design

    • Board assembly and bring-up

    • Make detailed test plan

    • Perform and document tests

May 06-14


Operating environment treatment cautions
Operating Environment & Treatment Cautions

  • A climate-controlled laboratory

    (At room temperature with low humidity)

  • ESD (Electro Static Discharge)

  • Safe place (locker) to keep equipments

May 06-14


Intended users uses
Intended Users & Uses

  • The primary users:

    • Engineers of the Teradyne Corporation

    • Possible derivative could be used outside Teradyne in the future.

  • The product function:

    • As a pre-amplifier for the signal input to a PC based spectrum analyzer device.

    • PC based spectrum analyzer was designed by previous phase

May 06-14


Assumptions and limitations
Assumptions and Limitations

  • Assumptions

    • The end product will not be sold to other companies.

    • The design provided by the previous team is valid.

    • Necessary equipment will be available.

  • Limitations

    • Equipments must be available on campus

    • The design must meet specifications

May 06-14


Design specifications

DC — 1kHz

Input

+/- 5 volts

6, 20, 40, 60

+/- 10 volts

0.05 dB

< - 105 dB

Total

1.5 nV/rtHz

Input

Voltage

Available

Max Output

Freq Response

Harmonic

> 1kHz - 20 kHz

+/- 5 volts

6, 20, 40, 60

+/- 10 volts

0.05 dB

< - 95 dB

1.5 nV/rtHz

Frequency

Range

Gain Settings

Voltage

Flatness

Distortion

Noise

> 20kHz - 100kHz

+/- 2.5 volts

6, 20, 40

+/- 5 volts

0.10 dB

< -85 dB

2.5 nV/rtHz

Range

(Volts)

(dB)

(Volts)

(dB)

(dB)

(nV/rtHz)

> 100kHz - 1MHz

+/- 2.5 volts

6, 20, 40

+/- 5 volts

0.10 dB

< - 80 dB

3.5 nV/rtHz

> 1MHz - 10MHz

+/- 2.5 volts

6, 20, 40

+/- 5 volts

0.10 dB

< - 70 dB

3.5 nV/rtHz

> 10MHz - 20MHz

+/- 2.5 volts

6, 20

+/- 5 volts

0.10 dB

< -65 dB

3.5 nV/rtHz

> 20MHz - 50MHz

+/- 1.0 volts

6, 20

+/- 2.0 volts

1.00 dB

< -50 dB

5.0 nV/rtHz

> 50MHz - 100MHz

+/- 1.0 volts

6, 20

+/- 2.0 volts

2.10 dB

< -40 dB

5.0 nV/rtHz

Design Specifications

May 06-14


End product other deliverables
End Product & Other Deliverables

  • A fully functional and tested design

  • A functioning prototype

  • Complete test plans

  • A full test report

  • Technical documentation on the design

May 06-14


Previous accomplishments
Previous Accomplishments

  • FPGA code

  • General Design

  • Documentation of progress

  • Design Schematic

  • Bill of Materials

  • Partial assembly

May 06-14


Present accomplishments future required activities
Present Accomplishments & Future Required Activities

  • Present Accomplishments:

    • Order missing parts

    • Board Assembly

    • Research and Verification

    • Re-vamp FPGA code

    • Make detailed test plan

  • Remaining Activities

    • Test amplifier

    • Produce test reports

    • Deliver finalized design

May 06-14


Approaches considered and one used
Approaches Considered and one used

  • Approaches considered:

    • Manual testing and calculation

    • LabVIEW automated testing and Excel calculation

  • Choice: LabVIEW automated testing

    • Repeatability

    • Self documentation

    • Speed/efficiency

    • Extra research required

May 06-14


Project definition activities
Project Definition Activities

  • Goals of this project:

    • Research & verify the previous design

    • Meet the specifications

    • Board Assembly

    • Make a detailed test plan

    • Testing

    • Documents all processes

May 06-14


Research activities
Research Activities

  • Study previous team’s design

  • Pspice simulation

    • Point of reference during bring up

    • Determine new specifications

    • Determine causes of problems found

  • Test methodologies

    • Noise

    • THD

  • LabVIEW

May 06-14


Design activities
Design Activities

  • Verification of design

    • DC Offset Correction

    • Operational Amplifier

  • Tests design

    • DC Offset Correction verification tests

    • Amplifier performance tests

    • Integration testing

May 06-14



Implementation activities
Implementation Activities

  • Errors on the PCB were fixed

  • New Pspice Simulation was developed

  • Specifications were adjusted

  • Test strategy was developed according to Client suggestions

May 06-14


Testing activities
Testing Activities

  • Location

    Microwave Engineering Lab (Room 344, Durham)

  • Specification

    • Pre-determined by the Client

  • Methodology

    • LabVIEW Automated

  • Testing Accuracy

    • Must ensure that equipment is accurate enough

    • Tolerance was calculated from different specifications of components

May 06-14


Testing activities1
Testing Activities

  • Specifications needed to be tested

    • Amplification Bandwidth (10Hz – 100MHz)

    • Noise density

    • THD (Total Harmonic Distortion)

    • DC-Offset correction accuracy

    • DC-Offset correction calibration time

May 06-14


Testing activities2
Testing Activities

  • List of tests

    • Amplifier gain test

    • Total harmonic distortion test

    • Circuit noise test

    • Amplifier gain flatness and bandwidth test

    • VHDL code behavior test

    • DAC control test

    • Offset calibration test

    • Offset correction verification test

May 06-14


Other activities
Other Activities

  • Choosing equipment

    • Finding options

    • Researching specifications

    • Getting access

  • Poster

May 06-14







Commercialization
Commercialization

  • Further modifications necessary for commercialization

  • Thorough testing helps improve viability

  • Needs to be packaged with PC based spectrum analyzer for commercialization

  • Price to be determined

  • Potential Market

    • Small technology companies

May 06-14


Additional work
Additional Work

  • Recommended additions

    • Full automation may be achieved

    • Frequency response calibration

    • PC control may be added to the product

  • Future integration with Spectrum Analyzer

May 06-14


Lessons learned
Lessons Learned

  • Experience gained

    • Test design

    • Test implementation

    • Team Work

    • Working with an outside client

    • Following schedules

May 06-14


Risk and management
Risk and Management

  • Test results may be unexpected

    • Conduct proper trouble shooting

  • Loss of a team member (Did not encounter)

    • Work cooperatively

    • Good communication

  • Hardware Damage

    • Quick replacement and backup board

  • Specifications are not practical

    • Define new specifications (with client input)

May 06-14


Closing summary
Closing Summary

  • This Team’s Tasks

    • Assemble the prototype

    • Develop FPGA code

    • Test the product

    • Document all details of the process

  • Project will make contribution

    • Teradyne

    • Integrated circuit industry

  • The team will received the following benefits:

    • Technical knowledge

    • Team work

    • Real industry project

  • Overall, this project will benefit both the client and the team

May 06-14


Questions
Questions ???

May 06-14


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