发明名称 CURRENT STEERING DIGITAL-TO-ANALOG CONVERTER
摘要 A digital to analog converter (DAC) module receives an input digital signal having a first data rate and is associated with a first frequency, the DAC module also receiving a synchronization signal having a second frequency that is higher than the first frequency. The DAC module includes an up-sampling circuit to generate a first digital signal having bit values of the input digital signal alternating with zero values, the first digital signal having a data rate that is higher than the first data rate; a delay circuit to delay the first digital signal by a time period to generate a second digital signal; a first DAC cell to generate a first analog signal based on the first digital signal, the first DAC cell being synchronized by the synchronization signal; a second DAC cell to generate a second analog signal based on the second digital signal, the second DAC cell being synchronized by the synchronization signal; and an adder to sum the first and second analog signals and generate a third analog signal.
申请公布号 WO2011000680(A1) 申请公布日期 2011.01.06
申请号 WO2010EP58175 申请日期 2010.06.10
申请人 MEDIATEK SINGAPORE PTE. LTD.;O'DONNELL, JOHN, JUDE;THOMPSON, FREDERICK, CARNEGIE 发明人 O'DONNELL, JOHN, JUDE;THOMPSON, FREDERICK, CARNEGIE
分类号 H03M1/74 主分类号 H03M1/74
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