| 一种混合信号测试系统的设计及实现 |
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| 引用本文： | 徐彦峰,李冰,虞致国. 一种混合信号测试系统的设计及实现[J]. 电子与封装, 2009, 9(10): 14-17 |
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| 作者姓名： | 徐彦峰 李冰 虞致国 |
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| 作者单位： | 中国电子科技集团公司第58研究所,无锡,214035;东南大学集成电路学院,南京,210096 |
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| 摘 要： | 针对一款混合信号的视频编解码芯片的参数测试要求，依据电路内部的测试结构，设计了一个基于纯数字自动测试设备（ATE）的混合信号电路测试系统。该测试系统通过增加MCU、ADC、DAC、FIFO、运放、可控开关等外围电路实现对芯片参数的测试。详细阐述了测试系统的总体方案、硬件设计和软件设计。通过软件和硬件的协同工作，该测试系统能够对含有AD、DA模块的混合信号电路相关参数进行测试，实现电路整体性能的评估。该测试系统原理清晰，结构简单，扩展灵活、方便。
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| 关 键 词： | 混合信号 可测性设计 测试系统 |
The Design and Implement of a Test System for Mixed-signal Circuits |
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| XU Yan-feng,LI Bing,YU Zhi-guo. The Design and Implement of a Test System for Mixed-signal Circuits[J]. Electronics & Packaging, 2009, 9(10): 14-17 |
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| Authors: | XU Yan-feng LI Bing YU Zhi-guo |
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| Affiliation: | XU Yan-feng1,LI Bing2,YU Zhi-guo1 (1. The 58th Research Institute of CETC,Wuxi 214035,China,2. IC college of Southeast University,Nanjing 210096,China) |
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| Abstract: | According to a chip internal test structure, a test system for mixed-signal circuits based on digital automatic test equipment(ATE) is presented to meet the test requirements of video encoding and coding chip. The overall scheme, hardware design, and software design of the test system is detailed described and the system's hardware includes MCU,ADC,DAC,FIFO,OPA and etc. Through hardware and software co-working, the performance parameters of the chip can be effectively tested and the test results show the vi... |
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| Keywords: | mixed-signal design-for-testability test-system |
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