Title :
Low-voltage CMOS frequency synthesizer for ERMES pager application
Author :
Hsu, June-Ming ; Dehng, Guang-Kaai ; Yang, Ching-Yuan ; Yang, Chu-Yuan ; Liu, Shen-Iuan
Author_Institution :
Ind. Technol. Res. Inst., Hsinchu, Taiwan
fDate :
9/1/2001 12:00:00 AM
Abstract :
A low-voltage frequency synthesizer fabricated with a 0.35-μm standard CMOS technology is presented. A 1 V dual-modulus prescaler using the dynamic back-gate forward bias method has been developed for low-voltage operation. The prescaler, including a preamplifier, measured at 1 V supply voltage has a maximum operating frequency of 170 MHz, and its power dissipation is only 0.9 mW. The voltage-controlled oscillator (VCO) in the frequency synthesizer is an LC-tank based oscillator. When locked at the oscillation frequency of 148 MHz, the measured phase noise of the VCO is -106 dBc/Hz at -100-kHz from the carrier. The whole power consumption of the frequency synthesizer is 10.5 mW
Keywords :
CMOS integrated circuits; frequency synthesizers; low-power electronics; mixed analogue-digital integrated circuits; paging communication; prescalers; 0.35 micron; 0.9 mW; 1 V; 10.5 mW; 148 MHz; 170 MHz; ASIC; CMOS frequency synthesizer; CMOS technology; ERMES pager application; LC-tank based oscillator; VCO; dual-modulus prescaler; dynamic back-gate forward bias method; low power consumption; low-voltage frequency synthesizer; phase noise; preamplifier; voltage-controlled oscillator; CMOS technology; Frequency measurement; Frequency synthesizers; Noise measurement; Phase measurement; Power dissipation; Power measurement; Preamplifiers; Voltage; Voltage-controlled oscillators;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
