发明名称 |
ACTIVE RESISTOR-CAPACITOR FILTER ARRANGEMENT |
摘要 |
<p>An active filter having a predetermined fourth-order transfer function is realized by employing a single gain unit, for example, a differential amplifier, in conjunction with two passive resistor-capacitor (RC) circuits. The RC circuits have pole-zero pairs which are widely separated in frequency. Consequently, each RC circuit does not cause appreciable distortion in the attenuation characteristic of the filter in the frequency band in which the other RC circuit is affecting the filter attenuation characteristic.</p> |
申请公布号 |
CA1033024(A) |
申请公布日期 |
1978.06.13 |
申请号 |
CA19750225756 |
申请日期 |
1975.04.29 |
申请人 |
WESTERN ELECTRIC COMPANY, INCORPORATED |
发明人 |
DANIELS, RICHARD W.;KURTH, CARL F. |
分类号 |
H03H11/12 |
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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