采用温度自适应电容阵列的数字温度补偿晶体振荡器

ICVC '99. 6th International Conference on VLSI and CAD (Cat. No.99EX361) Pub Date : 1999-10-26 DOI:10.1109/ICVC.1999.820900

M. Je, Joonho Gil, Jaeyoung Kwak, H. Yoo, Hyungcheol Shin

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摘要

我们提出了一种新的电容器阵列方案，我们称之为温度自适应电容器阵列(TACA)，并使用它在20 MHz下以0.3 ppm的微调精度实现了TCXO的完全数字微调。TACA方案在保证单调性的同时，节省了硅片面积。阵列布局面积减少约10%，预解码逻辑面积减少约14%。

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A digital temperature compensated crystal oscillator using a temperature adaptive capacitor array

We propose a new capacitor array scheme that we call a temperature adaptive capacitor array (TACA) and use it to achieve complete digital trimming of the TCXO at 20 MHz with 0.3 ppm trimming accuracy. The TACA scheme guarantees monotonicity and saves silicon area at the same time. About 10 % reduction in array layout area and about 14 % reduction in the pre-decoding logic area are reported.

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ICVC '99. 6th International Conference on VLSI and CAD (Cat. No.99EX361)

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