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本文介绍了激光修调原理、动态修调实现的方法，并以修调ＳＤＡ１２１０（１２位Ｄ／Ａ转换电路）为例，说明Ｄ／Ａ转换电路动态修调程序设计的方法、技巧以及应注意的问题。
In this paper, the principle of laser trimming and the method of dynamic trimming are introduced. Taking SDA1210 (12-bit D / A conversion circuit) as an example, the method, technique and design of dynamic trimming program design of D / A conversion circuit The problem.