2005 · 11 citations · 1 references
EngineeringElectrical EngineeringAnalog ElectronicsLow-power DesignMicroelectronicsAnalog Integrated CircuitsCmos Circuit DesignDigital Integrated CircuitsLow-power Digital Circuit DesignMixed-signal Integrated Circuit DesignMixed-signal IntegrationAnalog-to-digital Converter DesignCmos Analog Circuit DesignCmos Analog Integrated CircuitsFeedforward Loop DesignFeedforward Path DesignMixer CircuitsPassive Network DesignPower Consumption
A 1.2V 3.5mW CT /spl Delta//spl Sigma/ modulator with a mixer for a mobile digital TV receiver is implemented in 0.11 /spl mu/m CMOS. A current summing network composed of passive elements is used in the loop filter feedforward path, contributing to the low power consumption. A 78dB total DR is achieved by varying the DAC output power with the input signal power.
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