As a special interface connected with analog and digital circuits, high performance analog-to-digital converter is much more important in whole system design.

作为模拟电路与数字电路的接口电路，高性能的模数转换器对整个设计系统的实现非常重要。

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First, a special instrument to test the analog-control board, single-chip board and angle-measure board in the high precision servo turntable system is designed.

首先，针对某型精密伺服转台系统中三块电路板（模拟控制板、单片机板和测角控制板）设计了专门的电路板测试仪。

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