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A 3-V 1.3-to-1.8-GHz CMOS voltage-controlled oscillator with 0.3-ps jitter

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2 Author(s)
Shing-Tak Yan ; Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, Hong Kong ; Luong, H.C.

In this work, a 3 V three-stage voltage-controlled oscillator (VCO) implemented in a 0.5 μm complementary metal-oxide-semiconductor (CMOS) technology is presented. Using an active-feedback bias circuitry and swing-limiting devices, the proposed VCO achieves a very wide operating frequency range from 1.3 to 1.8 GHz with a relatively constant output amplitude and excellent linearity between the output frequency and the input control current. Both theory and simulation show that the root mean-square (rms) timing jitter is as small as 0.3 ps. The power supply sensitivity is 5.5%/V, the temperature coefficient is +500 ppm/°C, and the power consumption is 23 mW

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Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on  (Volume:45 ,  Issue: 7 )