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Differential terminal to termial connection circuit

A differential pair and termination resistor technology, applied in electrical components, multi-terminal pair networks, amplifiers with semiconductor devices/discharge tubes, etc., can solve problems such as non-monotonicity and signal reflection

Inactive Publication Date: 2007-07-18
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, a differential pair termination circuit is needed, which can solve the signal reflection and non-monotonicity problems of the differential pair line, and avoid affecting the output voltage

Method used

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  • Differential terminal to termial connection circuit
  • Differential terminal to termial connection circuit
  • Differential terminal to termial connection circuit

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Embodiment Construction

[0016] Please refer to FIG. 5, which is a circuit diagram of a preferred embodiment of the differential pair termination circuit of the present invention, which includes a first termination resistor R3, a second termination resistor R4, and a capacitor C1. The first termination resistor R3, capacitor C1 and the second termination resistor R4 are sequentially connected in series between the differential pair lines 32 .

[0017] The first terminating resistor R3 , the second terminating resistor R4 and the capacitor C1 are connected to a side close to the receiving end 34 .

[0018] The values ​​of the first termination resistor R3 and the second termination resistor R4 are matched with the differential pair line 32 . In this embodiment, the source end resistance value of the differential pair line 32 is 50 Ohm, the transmission line resistance value is 50 Ohm, and the differential impedance value of the differential pair line 32 is about 90 Ohm, so the first termination resisto...

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PUM

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Abstract

This invention relates to a difference pair-terminal circuit including a first termination resistor, a second termination resistor and capacitor, in which, the first resistor, the capacitor and the second termination resistor are serial between the difference pair circuits, compared with the present technology, said circuit can solve the problem of signal reflection of the difference pair circuit and non-blankness and does not influence output voltages.

Description

【Technical field】 [0001] The present invention relates to a differential pair termination circuit. 【Background technique】 [0002] The cause of crosstalk is that when a signal is transmitted on the transmission channel, it affects the adjacent transmission lines due to electromagnetic coupling, and a certain coupling voltage and coupling current are injected into the disturbed signal. In the field of digital circuit design, crosstalk exists widely, and with the increase of signal rate and the smaller and smaller product dimensions, the total crosstalk of digital systems also increases sharply. Excessive crosstalk will affect system performance, even Cause false triggering of the circuit, resulting in the system not working properly. [0003] In response to this situation, one of the methods commonly used in the industry is to use a differential wiring method, that is, to use a differential pair line. In the differential pair line transmission, the signal will produce refle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03H7/52
CPCH03H7/38H03F1/26H03F3/45475H03F2200/372H03F2203/45136H03F2203/45148H03F2203/45151H03F2203/45598
Inventor 邱金波
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD