High-precision time-to-digital converter in a FPGA device
High-precision time-to-digital converter in a FPGA device
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FPGA 器件中的高精度时间数字转换器
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
S. Loffredo
中科院分区：
文献类型：
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作者：
A. Aloisio;P. Branchini;R. Giordano;V. Izzo;S. Loffredo
介绍了一种基于SRAM的FPGA器件实现的高分辨率时间间隔测量系统的结构和设计过程。TDC可以通过在系统时钟周期内插入时间来提高测量精度。已经执行了两步相位内插，一步基于由VIRTEX-5 DCM提供的相位信息，从而提供精细时间，第二级相位内插基于进位线，从而提供iper精细时间测量。我们设计并构建了一个托管Virtex-5 Xilinx FPGA的PCB。在本文中，我们展示了董事会的主要特点和实现的性能方面的决议。
The construction and design process of a high-resolution time-interval measuring system implemented in a SRAM-based FPGA device is discussed in this paper. The TDC can increase the precision on the measurement by interpolating time within the system clock cycle. A two step phase interpolation has been performed, one based on the phase information delivered by the VIRTEX-5 DCM and thus providing a fine time, a second level phase interpolation was based on carry lines thus delivering an iper fine time measurement. We have designed and built a PCB hosting a Virtex-5 Xilinx FPGA. In this paper we show the main characteristics of the board and the performance achieved in terms of resolution.