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最近要用DAC5675A芯片做数模转换，在芯片手册上，update rate最大为400MSPS，而output setting time的典型值为12ns，也就是说输入的数字信号12ns后才能转化为正确的模拟信号，那么update rate最大应该等于1000Msps/12=83MSPS,这就与400MSPS矛盾了，请问专家如何才能正确理解这其中的关系？
output setting time叫tS，指精度稳定在0.1%所需时间，指请参考下图理解
