2006 · 13 citations · 3 references
EngineeringElectrical EngineeringLow-power DesignMicroelectronicsVlsi DesignCmos Circuit DesignDigital Integrated CircuitsIntegrated Circuit DesignModulationOscillatorsRadio-frequency Integrated CircuitsBandwidthCmos Analog Circuit DesignCmos Analog Integrated CircuitsCmos OscillatorsCmos Radio-frequency CircuitsRadio-frequency Integrated Circuit DesignRf Cmos DesignSilicon-based Oscillators
We present the first published implementation and measurements of a fully integrated phase path for a 3G polar transmitter in deep sub micron CMOS. It includes a single quad band digitally controlled oscillator (DCO) providing modulation capability to handle the wide bandwidth of the WCDMA phase (frequency) data and a switched inverter divider. The complete chip, with integrated LDOs, consumes 20mA from a 1.4V supply while providing a PN of -157dBc/Hz at a 40MHz offset for a 2GHz output
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All-digital PLL and GSM/edge transmitter in 90nm CMOS
Robert Bogdan Staszewski, J. Wallberg, S. Rezeq et al. · 2005 · 144 citations