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SST driving structure

A driving structure and driving module technology, applied in the direction of logic circuit interface device, logic circuit connection/interface layout, etc., can solve problems such as inability to realize

Inactive Publication Date: 2021-08-27
成都纳能微电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing current injection method can only adjust the amplitude, and the other function of the drive, that is, equalization adjustment, cannot be realized when there is current injection.

Method used

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Embodiment Construction

[0019] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0020] Embodiments of the present invention will now be described with reference to the drawings, in which like reference numerals represent like elements.

[0021] The invention provides an SST drive structure. refer to figure 1 As shown, it is a structural block diagram of the SST drive structure provided by an embodiment of the present invention.

[0022] like figure 1 As shown, the SST drive structure of the present invention includes a power supply terminal VDD, a first drive module connected to the power supply terminal VDD, a second drive module connected to the power supply terminal VDD, a third drive module connected to the first drive module, and The fourth driving module connected to the second driving module and the ground terminal GND connected to the third driving module and the fourth driving module,...

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PUM

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Abstract

The invention relates to an SST driving structure. The structure comprises a power supply end, a first driving module connected with the power supply end, a second driving module connected with the power supply end, a third driving module connected with the first driving module, a fourth driving module connected with the second driving module, and a grounding end connected with the third driving module and the fourth driving module, each of the first driving module, the second driving module, the third driving module and the fourth driving module comprises a main switch for controlling current injection and a current source which is connected with each main switch and is used for realizing output differential amplitude adjustment; the SST driving structure realizes balance adjustment and output differential amplitude adjustment at the same time through the first driving module, the second driving module, the third driving module and the fourth driving module.

Description

technical field [0001] The invention relates to the field of integrated circuits, in particular to an SST drive structure capable of simultaneously realizing balance adjustment and output differential amplitude adjustment. Background technique [0002] In the prior art, when the transceiver performs data transmission, the sending end converts the externally input parallel data into serial data, and then sends it to the receiving end. The protocol stipulates that the output differential amplitude of the sending end is adjustable from 0.4V to 1.2V, and in order to resist the loss of wires during transmission, the serialized data needs to be sent to the receiving end through a driver. [0003] The function of the driver is mainly to adjust the output differential amplitude and perform equalization adjustment (FFE adjustment). Common drivers include SST drive structure, CML drive structure, etc., and each of these drive structures has its own characteristics. The common SST dri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K19/0175
CPCH03K19/017509
Inventor 张岚吴召雷
Owner 成都纳能微电子有限公司
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