| 发明名称 |
Variable gain amplifier device |
| 摘要 |
<p>A variable gain amplifier device comprises a control signal converter (11) configured to convert a first gain control signal into a second gain control signal; and a gain controlled amplifier (12A) having a gain controlled by the second gain control signal, the gain being varied exponentially with respect to the first gain control signal, the gain controlled amplifier including a differential pair of first and second MOS type transistors (MN1, MN2) configured to operate in a weak inversion region. <IMAGE></p> |
| 申请公布号 |
EP1193868(A2) |
申请公布日期 |
2002.04.03 |
| 申请号 |
EP20010307792 |
申请日期 |
2001.09.13 |
| 申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
OTAKA, SHOJI;YAMAJI, TAKAFUMI |
| 分类号 |
H03G3/02;H03G1/00;H03G3/00;H03G3/10;H03G7/06;H04J13/00;H04L27/00;(IPC1-7):H03G1/00;H03G7/00 |
主分类号 |
H03G3/02 |
| 代理机构 |
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代理人 |
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| 主权项 |
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