Title :
A low power, 900MHz fractional-N synthesizer with quadrature outputs in 0.13um CMOS
Author :
Yan, Dan Lei ; Bansal, Ankur ; Zhao Bin ; Raja, M. Kumarasamy ; Akira, Yoshida ; Minkyu Je
Author_Institution :
Inst. of Microelectron., A*STAR (Agency for Sci., Technol. & Res.), Singapore, Singapore
Abstract :
This paper presents a fully integrated low power, low noise 900MHz fractional-N synthesizer using 0.13um CMOS process. The synthesizer exhibits low phase-noise, covering 860MHz to 1.03GHz using multiband low gain VCO. When measured at 930 MHz, the phase-noise is -90dBc/Hz, -92dBc/Hz and -116dBc/Hz at offsets of 1kHz, 100kHz, 1MHz respectively. The active die area is 0.55mm × 0.8mm. The chip operates over a wide range of supply voltage from 1.2V to 1.5V and temperature from -40°C to +85°C, respectively. The chip draws 5.5mA current including the divide by 2 and buffer, from a +1.36V supply at +25°C.
Keywords :
CMOS integrated circuits; biomedical electronics; low-power electronics; phase locked loops; phase noise; voltage-controlled oscillators; CMOS process; current 5.5 mA; frequency 1 kHz; frequency 100 kHz; frequency 860 MHz to 1.03 GHz; frequency 900 MHz; frequency 930 MHz; low noise fractional-N synthesizer; low phase-noise; low power fractional-N synthesizer; multiband low gain VCO; quadrature outputs; size 0.13 mum; supply voltage; temperature -40 degC to 85 degC; voltage 1.2 V to 1.5 V; Biomedical measurement; Phase frequency detector; Phase locked loops; Phase noise; Synthesizers; Voltage-controlled oscillators; 900MHz; CMOS; PLL; Phase Noise;
Conference_Titel :
Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO), 2013 IEEE MTT-S International
Conference_Location :
Singapore
DOI :
10.1109/IMWS-BIO.2013.6756152
