Algorithmic Time-to-Digital Converter

被引：0

作者：

Keranen, Pekka ^{[1
]}

Kostamovaara, Juha ^{[1
]}

机构：

[1] Univ Oulu, Dept Elect Engn, Elect Lab, Oulu, Finland

来源：

2013 NORCHIP | 2013年

关键词：

90 NM CMOS; RESOLUTION; TDC; PS;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A novel time-to-digital converter is proposed. The TDC is based on a ring oscillator, and operates by switching the oscillation frequency in a cyclic manner. The operating principle resembles a cyclic/algorithmic ADC, where the quantization error is amplified and quantized recursively. Due to the recursive operation, the TDC can achieve very high resolution. Resolution is mainly limited by nonlinearities and the phase noise of the ring oscillator. Simulations on a standard 0.35 mu m CMOS process show that a maximum error due to process variations and mismatch is about +/- 2ps when the TDC is properly calibrated. Noise induced measurement error was simulated to have a standard deviation of 0.3ps.

引用

页数：4

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