A 0.18-μ m CMOS Dual-band frequency synthesizer with spur reduction calibration
Journal
IEEE Microwave and Wireless Components Letters
Journal Volume
23
Journal Issue
10
Pages
551-553
Date Issued
2013
Author(s)
Abstract
This letter presents a 0.18 μm CMOS dual-band frequency synthesizer with charge-pump current mismatch calibration to reduce reference spurs. To enhance calibration accuracy the high-resolution phase detector (HRPD) is incorporated in this work. The measured output spur level is less than -63 dBc after the calibration circuits are activated and the reference spur reduction is more than 5.6 dB throughout the whole frequency range. The frequency synthesizer draws 16 mA from a 1.8 V power supply, and the covered frequency bands are 5.18-5.32 GHz and 5.74-5.82 GHz.
SDGs
Type
journal article