%0 Journal Article
%T A High Performance DDFS Suitable for Digital Vedio Encoder<br>一种适用于数字视频编码器的高性能直接数字频率合成器
%A 沈泊
%A 章倩苓
%J 半导体学报
%D 2001
%I 
%X A DDFS (Direct Digital Frequency Synthesizer) suitable for the digital vedio encoder is presented.By adopting the technique of noise shaping,the size of ROM is reduced to 1/8 of conventional one.The circuit size is further reduced by using other optimization methods.The worst S/N under PAL mode is 69dB,while 70 7dB under NTSC mode.
%K DDFS
%K phase noise spectrum
%K noise shaping<br>直接数字频率合成
%K 相位噪声谱
%K 噪声整形
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=025C8057C4D37C4BA0041DC7DE7C758F&aid=9E2D21765A0EBB48&yid=14E7EF987E4155E6&vid=BC12EA701C895178&iid=B31275AF3241DB2D&sid=6920A1020E13BE87&eid=5EEA08EFB4616D1C&journal_id=1674-4926&journal_name=半导体学报&referenced_num=1&reference_num=7