首页> 外文会议>Instrumentation and Measurement Technology Conference (I2MTC), 2012 IEEE International >The vernier-based TDC employing soft-injection-locked ring oscillators
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The vernier-based TDC employing soft-injection-locked ring oscillators

机译:基于游标的TDC,采用软注入锁定环形振荡器

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A time-to-digital converter (TDC) plays an important role in time interval measurement. Among various TDC structures, the vernier-based TDC is promising because it can possess high time resolution. However, the oscillators used in the conventional vernier-based TDC require complicated calibration procedure. This makes the TDC difficult in use. In this paper, we purpose a new soft-injection-locked ring oscillator for the vernier-based TDC. The proposed oscillator can oscillate immediately and accurately right after the trigger signal arrives. The TDC structure employing the purposed oscillators is verified by the off-the-shelf 40- and 74-series ICs. Experimental results show that the equivalent resolution less than ±1.5 LSB can be achieved.
机译:时间数字转换器(TDC)在时间间隔测量中起着重要作用。在各种TDC结构中,基于游标的TDC具有广阔的时间分辨率,因此很有前途。但是,在传统的基于游标的TDC中使用的振荡器需要复杂的校准程序。这使得TDC难以使用。在本文中,我们针对基于游标的TDC设计了一种新型的软注入锁定环形振荡器。所提出的振荡器可以在触发信号到达后立即准确地振荡。采用专用振荡器的TDC结构已通过现成的40系列和74系列IC进行了验证。实验结果表明,可以实现小于±1.5 LSB的等效分辨率。

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