| 摘要 |
PROBLEM TO BE SOLVED: To provide a wide-band digital-to-analog (D/A) converter.SOLUTION: Disclosed herein is an apparatus for radio frequency digital-to-analog conversion of in-phase and quadrature bit streams. The apparatus may include a plurality of in-phase multiplying cells that receive an in-phase local oscillator signal and a plurality of in-phase bits, a plurality of quadrature multiplying cells that receive a quadrature local oscillator signal and a plurality of quadrature bits, a first output line connected to a first set of the plurality of in-phase multiplying cells and a first set of the plurality of quadrature multiplying cells, and a second output line connected to a second set of the plurality of in-phase multiplying cells and a second set of the plurality of quadrature multiplying cells. Each multiplying cell produces an output signal based on a received input bit. The output signals from each multiplying cell combine in phase on the connected output line. |
