down converter

基本解釋

This paper introduces a numeral down converter control system.
本文介紹了一種數(shù)字式下變頻器的控制系統(tǒng)。
The design of hardware module includes A/D converter, DDC (Digital Down Converter) and DSP. The design and application of AD6640 and AD6624 are fully discussed in this part.
模塊的硬件設(shè)計主要包括：A／D轉(zhuǎn)換器、數(shù)字下變頻器（DDC）以及DSP，詳盡討論了A／D 器件AD6640和DDC 器件AD6624的設(shè)計和應(yīng)用；
At last, this thesis realizes digital down converter based on FPGA, and the whole designing process includes algorithm simulation, VHDL description, FPGA simulation and real system test.
最後，基於FPGA對數(shù)字下變頻進(jìn)行了設(shè)計及實現(xiàn)，具躰包括：算法倣真、VHDL描述、FPGA倣真和實際系統(tǒng)測試。

And it can also convert video in HD format into the two lower-quality formats with its "down converter" function.
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