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High-speed interface transmitter circuit, chip and electronic equipment

A high-speed interface and transmitter technology, applied in the field of high-speed interface transmitter circuits, chips and electronic equipment, can solve the problems of deteriorating system performance, reducing serial data eye opening, serious signal jitter, etc., to improve system performance, reduce Jitter, the effect of improving data performance

Pending Publication Date: 2022-04-19
INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a high-speed interface transmitter circuit, chip and electronic equipment to solve the serious signal jitter inside the high-speed interface transmitter chip in the prior art, which causes the serial data eye opening to decrease, and then seriously deteriorates the system. performance problem

Method used

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  • High-speed interface transmitter circuit, chip and electronic equipment
  • High-speed interface transmitter circuit, chip and electronic equipment
  • High-speed interface transmitter circuit, chip and electronic equipment

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Embodiment Construction

[0075] As mentioned in the background technology section, the internal signal jitter of the high-speed interface transmitter chip in the prior art is serious, which leads to the reduction of the serial data eye opening, thereby seriously deteriorating the system performance.

[0076] The inventors have found that the reason for the above phenomenon is that, as figure 1 as shown, figure 1 It is a comparison diagram of the output signal eye opening of the data serialization circuit under different timing matching; it can be seen from the figure that the optimal clock position should be located in the data center (the clock signal timing diagram above), and the data output by the data serialization circuit at this time The jitter is the smallest. If the edge of the clock signal deviates from the center of the data (clock signal timing diagram below), additional jitter will be introduced when the output signal is selected, and the jitter cannot be offset by the off-chip circuit. T...

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Abstract

The invention relates to a high-speed interface transmitter circuit, a chip and electronic equipment. The high-speed interface transmitter circuit comprises at least one group of data serialization circuits, at least one group of balance driving circuits, a clock generation and matching circuit and two load resistors, the clock generation and matching circuit is connected with the data serialization circuit, and a clock signal generated by the clock generation and matching circuit is used for performing clock matching with serial data in the data serialization circuit, so that the clock signal is accurately matched with the serial data in the data serialization circuit, and the data performance is further greatly improved; and the output jitter of the serialization circuit is reduced, so that the eye opening is increased, and the system performance is improved.

Description

technical field [0001] The invention relates to the technical field of integrated circuits, in particular to a high-speed interface transmitter circuit, chip and electronic equipment. Background technique [0002] The rapid development of cloud computing services, Internet of Things applications and artificial intelligence technology has driven the rapid growth of network transmission capacity, and the instantaneous exchange speed of interconnected data can reach Tbit / s. The continuous increase of communication data rate has brought great challenges to high-speed interconnect technology, and data transmission speed has become a key factor limiting system performance. High-speed serial interface technology has become an effective solution for high-speed data transmission due to its high bandwidth, low latency and good scalability, and is widely used in processor and peripheral interconnection, multi-chip interconnection, and high-speed hard disk interface , serial network in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03L7/08H03K3/02
CPCH03L7/08H03K3/02
Inventor 蔡晨郑旭强吴旦昱栾舰周磊武锦刘新宇
Owner INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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