用第四步中计算出的数字除以2(或是类似的转换因子)，由此把理想时间转换为持续时间。
Divide the figure you have calculated in step four by two (or similar conversion factor) in order to convert from ideal time to elapsed time.
直接数字频率合成(DDS)技术是目前广为应用的一项频率合成技术，它具有频率转换时间短、频率分辨率高、可编程等特点。
DDS (direct digital synthesis) is a sort of frequency synthesis technique, which has advantages such as short frequency conversion time, high resolution in frequencies, programmability and so on.
流水线ADC的模块有采样保持电路、乘法数模转换器、子ADC、数字校正电路、时钟产生电路和时间对齐电路。
The whole circuit consists of Sample and Hold Circuit, the Multiplicative A/D Converter, the Sub-ADC, the Digital Calibration Circuit, the Clock Generator and the Time Synchronizer.
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