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Mixed-Signal Option for the Teradyne Integra J750 Test System

Published byGiles Benson Modified over 9 years ago

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Presentation on theme: "Mixed-Signal Option for the Teradyne Integra J750 Test System"— Presentation transcript:

1 Mixed-Signal Option for the Teradyne Integra J750 Test System
May08-12 Emily Evers Vincent Tai

2 Definitions ADC – Analog-to-Digital Converter
DAC – Digital-to-Analog Converter DIB – Device Interface Board DUT – Device under Test IG-XL – Software used by Teradyne for the J750 tester INL – Integral Nonlinearity DNL – Differential Nonlinearity

3 Input Requirements & Specifications
Devices ADC DAC Op-Amp Input Specifications ADC 10 bit 12 bit DAC Op-Amp High Speed

4 Inputs Detailed Design ADC Op-Amp DAC AD7892 AD7470 AD823 AD5447

5 Output Requirements Specifications Test Results Input Signals
Output Signals Calculations

6 Outputs ADC HLHLHL DAC Op-Amp

7 Outputs Detailed Design ADC and DAC Op-Amp INL DNL Bandwidth
Offset Voltages Intermodulation Test

8 INL = Actual Output - Expected Output
Outputs Detailed Design Integral Nonlinearity Digital Input 0x00 - 0xFF Analog Output 0 - 5V INL = Actual Output - Expected Output Actual Output Expected Output l

9 DNL=Actual Step Size - Expected Step Size
Outputs Detailed Design DNL Digital Input 0x00 - 0xFF Analog Output 0 - 5V DNL=Actual Step Size - Expected Step Size Expected Step Size Actual Step Size l

10 Outputs Detailed Design Intermodulation Test 100 -60dB 0dB 150 200 250
FREQUENCY F2 150 200 250 50 F2 + F1 F2 - F1 F1 MAGNITUDE

11 User Interface Requirements Specifications Mixed-Signal Cookbook IG-XL
Written in English Easy-to-use IG-XL Program Create test programs with adequate commenting

12 User Interface

13 Software Requirements Specifications IG-XL Pin & Channel Maps
AC & DC Specs Time Sets Levels Test Instances Procedures Flow Table

14 Software Detailed Design
Data for IG-XL worksheets is gathered from the datasheets for the DUT

15 Software AC specs Time Sets

16 Hardware Requirements Specifications Teradyne J750 Device Interface
Computer Specifications DIB Daughterboard Socket Converter

17 Hardware Detailed Design Create mapping from DIB to DUT
Map DIB to Daughterboard Map Daughterboard to Socket Converter Map Socket Converter to DUT

18 Hardware

19 Hardware

20 Hardware

21 Testing Requirements Specifications Cookbook use
Team Members Faculty Advisor Students Specifications Ease of manipulation for different models Ease of changing desired calculations

22 Thank You Questions?

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