Journal of the Institute of Electronics and Information Engineers (전자공학회논문지)

The Institute of Electronics and Information Engineers (대한전자공학회)
권호 표지
DOI QR코드

DOI QR Code

A Class-C type Wideband Current-Reuse VCO With 2-Step Auto Amplitude Calibration(AAC) Loop

2 단계 자동 진폭 캘리브레이션 기법을 적용한 넓은 튜닝 범위를 갖는 클래스-C 타입 전류 재사용 전압제어발진기 설계

  • Kim, Dongyoung (Department of Semiconductor and Display Engineering, Sungkyunkwan University) ;
  • Choi, Jinwook (Department of Semiconductor and Display Engineering, Sungkyunkwan University) ;
  • Lee, Dongsoo (Department of Semiconductor and Display Engineering, Sungkyunkwan University) ;
  • Lee, Kang-Yoon (Department of Semiconductor and Display Engineering, Sungkyunkwan University)
  • Received : 2014.06.24
  • Accepted : 2014.11.01
  • Published : 2014.11.25
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, a design of low power Current-Reuse Voltage Controlled Oscillator (VCO) which has wide tuning range about 1.95 GHz ~ 3.15 GHz is presented. Class-C type is applied to improve phase noise and 2-Step Auto Amplitude Calibration (AAC) is used for minimizing the imbalance of differential VCO output voltage which is main issue of Current-Reuse VCO. The mismatch of differential VCO output voltage is presented about 1.5mV ~ 4.5mV. This mismatch is within 0.6 % compared with VCO output voltage. Proposed Current-Reuse VCO is designed using CMOS $0.13{\mu}m$ process. Supply voltage is 1.2 V and current consumption is 2.6 mA at center frequency. The phase noise is -116.267 dBc/Hz at 2.3GHz VCO frequency at 1MHz offset. The layout size is $720{\times}580{\mu}m^2$.

본 논문에서는 전류-재사용 구조를 사용하여 1.95 GHz~3.15 GHz 의 광범위한 튜닝 범위를 갖는 저전력 전압 제어 발진기(VCO)를 설계하였다. 클래스-C 타입을 적용하여 위상 잡음 특성을 향상 시켰으며, 2 단계 자동 진폭 캘리브레이션 기법을 통해 전류-재사용 전압제어발진기 구조의 가장 큰 단점인 차동 출력 전압간의 불균형을 최소화 하였다. 차동 출력 전압간의 차이는 1.5mV ~ 4.5mV 가량으로 나타나며, 이는 출력 전압의 0.6% 이내 오차이다. 제안하는 전류-재사용 전압제어발진기는 CMOS $0.13{\mu}m$ 공정을 사용하여 설계 하였다. 공급 전압은 1.2 V를 사용하였고, 소모 전류는 2.3 GHz에서 2.6 mA이다. 출력주파수가 2.3 GHz에서 위상 잡음은 -116.267 dBc/Hz(@1MHz Offset)이며, 레이아웃 면적은 $720{\times}580{\mu}m^2$ 이다.

Keywords

References

  1. Chin-Lung Yang, Yi-Chyun Chiang, "Low Phase-Noise and Low-Power CMOS VCO Constructed in Current-Reused Configuration", IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, VOL. 18, NO. 2, FEBRUARY 2008
  2. Teerachot Siriburanon, Wei Deng, Kenichi Okada, Akira Matsuzawa, "A Current-Reuse Class-C LC-VCO with an Adaptive Bias Scheme", 2013 IEEE Radio Frequency Integrated Circuits Symposium
  3. KaChun Kwok, Howard C.Luong, "Ultra-Low- Voltage High-Performance CMOS VCOs Using Transformer Feedback", IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 40, NO. 3, MARCH 2005
  4. Ye Zhang, Lei Liao, Muh-Dey Wei, Jan Henning Mueller, Basian Mohr, Aytac Atac, Yifan Wang, Martin Schleyer, Ralf Wunderlich, Renoto Negra, Stefan Heinen, "A 2.4-GHz Low Power High Performance Frequency Synthesizer Based on Current-Reuse VCO and Symmetric Charge Pump", 2013 IEEE Radio Frequency Integrated Circuits Symposium
  5. Wenrong Ying, Peng Qin, Jing Jin, Tingting Mo, "A 1mW 5GHz Current Reuse CMOS VCO with Low Phase Noise and Balanced Differential Outputs", 2011 International Symposium on Integrated Circuits
  6. Seok-Ju Yun, So-Bong Shin, Hyung-Chul Choi, Sang-Gug Lee, "A 1mW Current-Reuse CMOS Differential LC-VCO with Low Phase Noise", in Proc. IEEE Int. Solid-State Circuits Conf., Feb 2005, PP. 540-616
  7. Ali Hajimiri and Thomas H. Lee, "Design Issues in CMOS Differential LC Oscillators", IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 34, NO. 5, MAY 1999