Broadband signal switching equipment

Details Broadband signal switching equipment Broadband signal switching equipment

H - Electricity

04

Q

H04Q 3/52 (2006.01) H03K 17/687 (2006.01) H03K 17/693 (2006.01)

Patent

CA 2052157

ABSTRACT OF THE DISCLOSURE In broadband signal switching equipment having a cross point matrix in FET technology whose switch elements respectively controlled by a holding memory cell are respectively formed by a series circuit of a switching transistor and of an input transistor, an n-channel series pass transistor that has its control electrode connected to a reference potential source is respectively inserted between the matrix output line and the following output amplifier circuit. This n-channel series pass transistor, together with a matrix output line pre-charging transistor connected to the input of the output amplifier circuit, forms a charge transfer circuit that effects a voltage amplification. A pre-charging transistor that also has its control electrode connected to the pre-charging phase/evaluation phase clock signal line is also connected to the input of an input driver circuit that precedes a matrix input line, a transfer gate that precedes the input driver circuit also being simultaneously controlled proceeding from this pre-charging phase/evaluation phase clock signal line.

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