A Low Power Coupling Shielded Digitally Controlled Oscillator (DCO)

• Sang-Sun Yoo

  KAIST

• Kang-Yoon Lee

  Sungkyunkwan Univ.

• Hyung-Joun Yoo

  KAIST

Abstract

This paper presents is a coupling shieled digitally controlled oscillator (DCO). The DCO has magnetic coupling shielding ring (CSR) which is designed with aluminum (Al) pad metal. This closed ring induces electromagnetic-force by Lenz's Low. As a results, designed DCO can be protected from the attack of power amplifier (PA) with strong magnetic field. The DCO was fabricated in 55-nm CMOS process. By using CSR, isolation between DCO and PA is increased about 11 dB witout degradations of performances.

Journal

• IEICE Proceeding Series

  IEICE Proceeding Series 61 315-317, 2016-07-10

  The Institute of Electronics, Information and Communication Engineers

Keywords

• DCO
• coupling
• shield ring
• ADPLL
• crosstalk

Details

• CRID: 1391975831221778432
• NII Article ID: 230000012294
• DOI: 10.34385/proc.61.m3-3-2
• ISSN: 21885079
• Text Lang: en
• Data Source:
  • JaLC
  • CiNii Articles
• Abstract License Flag: Disallowed