| 发明名称 |
Devices and methods for improving jitter transfer in optical modules |
| 摘要 |
<p>A sample & hold type phase detector is used in a CDR IC and, in jitter transfer bandwidth adjustment, VCO output waveforms 90 DEG out of phase with each other can be inputted to the phase detector, whereby a jitter transfer bandwidth can be calculated by only the measurement of frequency and of a DC voltage and it is possible to make a jitter transfer bandwidth adjustment in DC test for IC. <IMAGE></p> |
| 申请公布号 |
EP1271838(B1) |
申请公布日期 |
2007.10.10 |
| 申请号 |
EP20010306830 |
申请日期 |
2001.08.10 |
| 申请人 |
OPNEXT JAPAN, INC. |
发明人 |
CHUJO, NORIO;YAMAMOTO, KEIICHI;OSAKI, AKIO;HIRANO, KATSUNORI;NAKAO, TAKAYUKI;SHIMOTSU, TOMOAKI;HASEGAWA, ATSUSHI;AOKI, TETSUYA;YAMASHITA, TAKESHI |
| 分类号 |
H01L31/10;H04L7/033;H01L31/107;H03L7/085;H03L7/091;H03L7/14;H04B10/07;H04B10/2507;H04B10/40;H04B10/50;H04B10/60 |
主分类号 |
H01L31/10 |
| 代理机构 |
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代理人 |
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| 地址 |
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