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A six-phase divide-by-3 injection locked frequency divider in SiGe BiCMOS technology

✍ Scribed by Sheng-Lyang Jang; Kuan-Chun Shen; Chia-Wei Chang; Miin-Horng Juang

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
332 KB
Volume
51
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

This article presents a six‐phase silicon‐germanium (SiGe) heterojunction bipolar transistor divide‐by‐3 injection locked frequency divider (ILFD). The ILFD is based on a three‐stage differential ring oscillator (voltage controlled oscillators) and was fabricated in the 0.35 μm SiGe 3P3M BiCMOS technology. The divide‐by‐3 function is performed by injecting a differential signal to the common gates of injection MOSFETs with the drain/sources connected to the VCO outputs. Measurement results show that when the supply voltage V~dd~ is tuned from 1.4 V to 2 V, the divider free‐running oscillation frequency is tunable from 6.2 GHz to 3.58 GHz, and at the incident power of 0 dBm the operation locking range is about 8.3 GHz, from the incident frequency 18.8 to 10.5 GHz. The core power consumption is 8.96 mW at V~dd~ = 1.4 V. The die area is 0.802 × 0.812 mm^2^. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1555–1557, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24345

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