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Abstract：
In this paper, we present a fully integrated circuit without inductance implementing Chua\'s chaotic system. The circuit described in this study utilizes the SMIC 180 nm CMOS process and incorporates a multi-path voltage-controlled oscillator (VCO). The integral-differential nonlinear resistance is utilized as a variable impedance component in the circuit, constructed using discrete devices from a microelectronics standpoint. Meanwhile, the utilization of a multi-path voltage-controlled oscillator ensures the provision of an adequate oscillation frequency and a stable waveform for the chaotic circuit. The analysis focuses on the intricate and dynamic behaviors exhibited by the chaotic microelectronic circuit. The experimental findings indicate that the oscillation frequency of the VCO can be adjusted within a range of 198 MHz to 320 MHz by manipulating the applied voltage from 0 V to 1.8 V. The circuit operates within a 1.8 V environment, and exhibits power consumption, gain-bandwidth product (GBW), area, and Lyapunov exponent values of 1.0782 mW, 4.43 GHz, 0.0165 mm2, and 0.6435∼1.0012, respectively. The aforementioned circuit design demonstrates the ability to generate chaotic behavior while also possessing the benefits of low power consumption, high frequency, and a compact size.
摘要：
在本文中,我们提出了一个完全集成电路，没有电感实现蔡氏混沌系统。本研究中描述的电路利用SMIC180nmCMOS工艺，并结合了多路径压控振荡器（VCO）。积分-微分非线性电阻被用作电路中的可变阻抗元件，从微电子学的角度来看，使用分立器件构造。同时,多路径压控振荡器的使用确保了为混沌电路提供足够的振荡频率和稳定的波形。分析的重点是混沌微电子电路表现出的复杂和动态行为。实验结果表明，通过操纵0V至1.8V的施加电压，可以在198MHz至320MHz的范围内调节VCO的振荡频率。并显示功耗，增益带宽乘积(GBW)，area,Lyapunov指数值为1.0782mW，4.43GHz,分别为0.0165mm2和0.6435≈1.0012。上述电路设计展示了产生混沌行为的能力，同时还具有低功耗的优点，高频,和紧凑的尺寸。
