发明名称 |
Adjusting the trans-conductance of a filter |
摘要 |
A digital tuning circuit which generates a digital code representative of a difference of signals generated by a mirror trans-conductor circuit (having electrical characteristics similar to a trans-conductor circuit in a filter) and a reference circuit. The digital code is used to adjust the trans-conductance of both the mirror trans-conductor circuit and the filter. Some of the most/more significant bits may be used to selectively activate the respective trans-conductor elements contained in the mirror trans-conductor circuit and the filter. The remaining bits may be used to fine-tune the trans-conductance of the trans-conductor elements and the filter.
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申请公布号 |
US2004100322(A1) |
申请公布日期 |
2004.05.27 |
申请号 |
US20020302887 |
申请日期 |
2002.11.25 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
GANESHAN SARAVANA KUMAR;VENKATRAMAN SRINIVASAN |
分类号 |
H03H11/12;(IPC1-7):H03B1/00 |
主分类号 |
H03H11/12 |
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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