A Power-Efficient LC Quadrature VCO for RFID, Zigbee and Bluetooth Standards
نویسندگان
چکیده
A multi-band CMOS LC Quadrature Voltage Control Oscillator (QVCO) with minimum power consumption is developed to meet the phase noise and frequency band requirements of RFID, Zigbee and Bluetooth standards. To accomplish the multi-band receiving architecture at low power consumption, current switching technique with optimized cross-coupled transistor sizes has been used. A comprehensive analysis of small signal model for complementary architecture including transistor noise sources and their effects on output phase noise amount has been discussed. Using extracted small signal model, coupled and coupling transistor sizes for minimum power consumption and the least achievable phase noise have been optimized. Designed QVCO has been implemented using TSMC 0.18um CMOS technology operating at 1.8V supply voltage. Proposed QVCO generates two separated frequency bands of 1.65-1.85GHz and 2.42.5GHz with phase noise of -125dBc/Hz at frequency offset of 3MHz. The total current drawn by QVCO is 7.5mA which makes the power consumption as low as 13.5mW.
منابع مشابه
Designing a Ring-VCO for RFID Transponders in 0.18 μm CMOS Process
In radio frequency identification (RFID) systems, performance degradation of phase locked loops (PLLs) mainly occurs due to high phase noise of voltage-controlled oscillators (VCOs). This paper proposes a low power, low phase noise ring-VCO developed for 2.42 GHz operated active RFID transponders compatible with IEEE 802.11 b/g, Bluetooth, and Zigbee protocols. For ease of integration and imple...
متن کاملDesign and Simulation of an X Band LC VCO
In this paper, a systematic method for the circuit parameters design of a monolithic LC Voltage Controlled Oscillator (VCO) is reported. The method is based on the negative resistance generation technique. As a result, a VCO has been designed in 0.18um CMOS technology using a conventional VCO structure to obtain the optimum values for the phase noise and power consumption. The simulation result...
متن کاملA 2.4 GHz 3.6mW 0.35mm2 Quadrature Front-End RX for ZigBee and WPAN Applications
a cheaper design. Since an LC-oscillator topology is mandatory to achieve a minimal current draw, the reduction of the number of coils has to be done in the LNA, the mixer and the quadrature generator. In this work, starting from the LNA-Mixer and VCO (LMV) cell topology [2], a single-coil low-power receiver shares the bias current among all the RF blocks of the analog front-end. The receiver p...
متن کامل130 nm CMOS Mixer and VCO for 2.4 GHz Low-power Wireless Personal Area Networks
This paper describes a 2.4 GHz passive switch mixer and a 5/2.5 GHz voltage-controlled negative Gm oscillator (VCO) with an inversion-mode MOS varactor. Both circuits are implemented using a 1P8M 0.13 μm process. The switch mixer has an input referred 1 dB compression point of −3.89 dBm and a conversion gain of −0.96 dB when the local oscillator power is +2.5 dBm. The VCO consumes only 1.75 mW,...
متن کاملLow-Power Low-Phase-Noise Differentially Tuned Quadrature VCO Design in Standard CMOS
This paper describes the design and optimization of voltage controlled oscillators with quadrature outputs. Systematic design of fully integrated LC-VCOs with a high inductance tank leads to a cross-coupled double core LC-VCO as the optimal solution in terms of power consumption. Futhermore, a novel fully differential frequency tuning concept is introduced to ease high integration. The concepts...
متن کامل