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A new wide locking range injection-locked frequency divider (ILFD) using a standard 0.18 μm CMOS process is presented. The ILFD is based on a differential VCO with one injection MOSFET for coupling the external signal to the resonator. The locking range of the ILFD is increased by using a new LC resonator. Measurement results show that at the supply voltage of 0.75 V, the divider's free-running frequency is tunable from 3.91 to 3.956 GHz, and at the incident power of 0 dBm the locking range is about 7.07 GHz (91%), from the incident frequency 4.23 to 11.3 GHz. The ILFD has a record locking range percentage among published divide-by-2 LC-tank cross-coupled ILFDs.
Published in:
VLSI Design Automation and Test (VLSI-DAT), 2010 International Symposium on
Date of Conference: 26-29 April 2010
- Page(s):
- 87 - 90
- E-ISBN :
- 978-1-4244-5271-2
- Print ISBN:
- 978-1-4244-5269-9
- INSPEC Accession Number:
- 11536549
- Conference Location :
- Hsin Chu
- Digital Object Identifier :
- 10.1109/VDAT.2010.5496698
- Product Type:
- Conference Publications
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