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A 0.93-mA Spur-Enhanced Frequency Synthesizer for L1/L5 Dual-Band GPS/Galileo RF Receiver
- Authors
- Hwang, In-Chul; Baek, Donghyun
- Issue Date
- Jun-2010
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Charge pump circuit; frequency synthesizers; Galileo; GPS; phase locked loops; phase noise; reference spur
- Citation
- IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, v.20, no.6, pp 355 - 357
- Pages
- 3
- Journal Title
- IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
- Volume
- 20
- Number
- 6
- Start Page
- 355
- End Page
- 357
- ISSN
- 1531-1309
- Abstract
- A versatile frequency synthesizer for a L1/L5 dual-band GPS/Galilleo dual-mode RF receiver is designed with a 0.13 mu m CMOS process. For spur reduction, a simple low-glitch charge-pump circuit (CPC) is proposed in this letter. The fabricated chip achieves the in-band phase noise of -92 dBc/Hz and the spur performance of -71.23 dBc at 8.184 MHz offset from 1.571 GHz carrier with a second-order loop filter.
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