一种低功耗自动增益控制集成石英振荡器
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国家自然科学基金资助项目(61404011);湖南省自然科学基金资助项目(2015JJ3001);湖南省教育厅资助科研基金资助项目(17B007)

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Automatic Gain Controll Integrated Quartz Oscillator With Low Power
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    摘要:

    通过分析三点式振荡器的结构原理,选取桑托斯(Santos)结构,利用非对称差分对的电流分配特性实现幅度控制,以降低功耗。采用反相器链整形满摆幅输出,设计了一种适用于无线接收芯片的12 MHz自动增益控制晶体振荡器。基于和舰(HJ)射频(RF)0.18 μm CMOS工艺,完成电路设计、版图设计与仿真,流片并测试。结果表明,该晶体振荡器的总电流为120 μA,相位噪声为-121 dBc/@1 kHz,-165.1 dBc/@1 MHz,满足无线接收芯片的性能指标。

    Abstract:

    A kind of 12 MHz automatic gain control crystal oscillatorsuitablefor wireless receiver chip was designed based on the 〖JP2〗Santos structure by analyzing the principle of threepoint oscillator structure. In this oscillator circuit, the amplitude control was achieved by using the asymmetric difference pair current distribution characteristic 〖JP〗to reduce the power consumption,and the inverter chain was adopted to shape the fullswing output. Based on the HJ RF 0.18 μm CMOS process,the circuit design and layout design as well as the simulation were accomplished,and the tapeout and test were also carried out. The results indicated that the total current of oscillator was 120 μA, phase noise was -121 dBc/@1 kHz, -165.1 dBc/@1 MHz, respectively, which met the specifications of wireless receiver chip.

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谢海情,王龙,陈玉辉,李洁颖,肖海鹏,王振宇,曾承伟.一种低功耗自动增益控制集成石英振荡器[J].压电与声光,2018,40(6):905-909. XIE Haiqing, WANG Long, CHEN Yuhui, LI Jieying, XIAO Haipeng, WANG Zhenyu, ZENG Chengwei. Automatic Gain Controll Integrated Quartz Oscillator With Low Power[J]. PIEZOELECTRICS AND ACOUSTOOPTICS

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  • 在线发布日期: 2018-12-20
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