An MICS band frequency synthesizer using active inductor and auto-calibration scheme

作者：Huang, Hong-Yi^*; Wu, Chun-Chieh; Luo, Ching-Hsing

来源：MICROELECTRONICS JOURNAL, 2012, 43(8): 592-599.

DOI：10.1016/j.mejo.2011.09.012

• Voltage control oscillator
• Fractional-N PLL
• Active inductor
• Auto calibration

An MICS band fractional-N frequency synthesizer using active inductors and auto-calibration technology is presented in this work. The active inductors and capacitors of the loop filter were implemented with MOSFET for decreasing the phase noise and silicon area. Moreover, the proposed auto-calibration technique would reduce and overcome the effect of voltage, temperature, and process variations. This chip was fabricated in 0.18 mu m CMOS process. The measurement results show that the proposed 402-405 fractional-N PLL occupies a core area of 450 x 385 mu m(2). The phase noise is -105.5 dBc/Hz at 1 MHz. The power consumption is 5.13 mW at 402 MHz.

• 出版日期2012-8
• 单位中国科学院电工研究所