伪随机测试生成在混合电路参数测试中的应用

Application of pseudorandom testing in mixed-signal circuits parameter test

混合信号电路在通信、多媒体等领域获得越来越广泛的应用。然而,测试也变得更复杂。传统上对模拟电路的测试采用的是直接功能测试,即直接测量电路的性能参数Z。采用该测试方法,其缺点是测试时间长、测试设备昂贵、且精度差。本文针对这一问题进行研究,详细讨论了利用伪随机技术进行混合信号电路测试的方法。

MIXED-SIGNAL circuits are gaining popularity in various applications such astelecommunication, multimedia, etc. However, the testing problems are getting more complex.Traditionally, the analog circuit is tested by explicit functional testing: directly measured its perfor-mance parameter set Z. Long test application time and complicated test equipment are required. Thetechnology of pseudo-random to detect the mixed-signal circuits is disussed in details.