发明名称 |
Variable gain amplifier device |
摘要 |
A variable gain amplifier device controlled by a first gain control signal comprises a gain controlled amplifier having a gain and including a differential pair of first and second MOS type transistors configured to operate in a weak inversion region; and a control signal converter configured to convert the first gain control signal into a second gain control signal, and supply the second gain control signal to the gain controlled amplifier to exponentially vary the gain with respect to the first gain control signal.
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申请公布号 |
US7065334(B1) |
申请公布日期 |
2006.06.20 |
申请号 |
US20060352371 |
申请日期 |
2006.02.13 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
OTAKA SHOJI;YAMAJI TAKAFUMI |
分类号 |
H03G3/02;H04B7/00;H03F3/45;H03G1/00;H03G3/00;H03G3/10;H03G7/06;H04J13/00;H04L27/00 |
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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地址 |
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