公开(公告)号：US07375583B2

公开(公告)日：2008-05-20

申请号：US11343937

申请日：2006-01-31

申请人： Eoin Ohannaidh

发明人： Eoin Ohannaidh

IPC分类号： H03K5/00

CPC分类号： H03H11/1213 ,  H03H11/1252 ,  H03H11/1286

摘要： A differential biquad filter includes positive and negative single ended circuits connected between first and second power supply terminals. Each single ended circuit includes a single input terminal; a transistor having a control terminal, and first and second main terminals; a single output terminal corresponding to the control terminal of the transistor; first and second conductances connected between the single input terminal and the control terminal of the transistor; a first capacitance connected between the control terminal of the transistor and the second main terminal of the other single ended circuit; and a second capacitance connected between the node between the first and second conductances on one hand and the second main terminal of the transistor on the other hand. The differential biquad filter also includes a fifth capacitance connected between the second main terminals of each transistor of each single ended circuit.

摘要翻译： 差分双二阶滤波器包括连接在第一和第二电源端子之间的正和负单端电路。 每个单端电路包括单个输入端; 具有控制端子的晶体管，以及第一和第二主端子; 对应于晶体管的控制端子的单个输出端子; 连接在单个输入端子和晶体管的控制端子之间的第一和第二导体; 连接在晶体管的控制端和另一个单端电路的第二主端之间的第一电容; 另一方面连接在第一和第二电导之间的节点与晶体管的第二主端之间的第二电容。 差分双二阶滤波器还包括连接在每个单端电路的每个晶体管的第二主端之间的第五电容。