A MASH 1-1-1 Delta Sigma time-to-digital converter based on two-stage time quantization

作者：Wang Zixuan^*; Wu Jianhui; Chen Qing; Ji Xincun

来源：IEICE Electronics Express, 2013, 10(24): 20130729.

DOI：10.1587/elex.10.20130729

• time-to-digital converter
• MASH sigma-delta modulator
• noise shaping
• high resolution

A MASH 1-1-1 Delta Sigma time-to-digital converter (TDC), based on two-stage time quantization, was designed with a 0.13 mu m CMOS process and a 1.2V supply. A classical delay line and a Vernier delay line were used for coarse and fine quantization, respectively. Third-order noise-shaping was achieved using the proposed MASH 1-1-1 Delta Sigma modulator. Simulation results showed that a resolution of up to 5.5 ps and a measurement range of 38.4 ns could be achieved. The proposed TDC consumes 4.9mW and occupies 0.28 mm(2).

• 出版日期2013
• 单位东南大学