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Drivers for high-speed serial data transmission and high-speed serial interface transmitters

A data transmission, high-speed serial technology, used in digital transmission systems, transmission systems, baseband system components, etc., can solve the problem of small adjustable range of pre-emphasis coefficient, save power consumption, constant impedance, configuration flexible effect

Active Publication Date: 2019-07-12
上海奥令科电子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The adjustable range of the pre-emphasis coefficient realized by this scheme is small

Method used

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  • Drivers for high-speed serial data transmission and high-speed serial interface transmitters
  • Drivers for high-speed serial data transmission and high-speed serial interface transmitters
  • Drivers for high-speed serial data transmission and high-speed serial interface transmitters

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] See attached figure 2 , the embodiment of the present invention discloses a driver for high-speed serial data transmission, the driver includes 2 parallel connected between the output differential nodes TX_P and TX_N N an interface driver unit;

[0032] Each interface driver unit includes: a left unit circuit and a right unit circuit, and the left unit circuit and the right unit circuit are left and right differential mirror symmetrical structures; bo...

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Abstract

The invention discloses a driver for high-speed serial data transmission, and a high-speed serial interface transmitter. The driver for the high-speed serial data transmission is built through the high-speed MUX combined with the combinatorial logic, and each interface driver unit can be configured to work at the current data Data, or Data_PRE or Data_POST. The configuration mode is flexible, andany required pre-emphasis coefficient can be achieved. Moreover, no interface driver unit circuit is in an idle state, so the utilization rate of resource is higher.

Description

technical field [0001] The invention relates to the technical field of high-speed analog integrated circuit design, and more specifically relates to a driver for high-speed serial data transmission and a high-speed serial interface transmitter. Background technique [0002] In wired transmission technology, high-speed serial communication occupies an increasingly important position, and the data rate of high-speed serial communication is also rising continuously. For example, in optical communication modules, 28Gbps NRZ coded transmission and even 56Gbps PAM4 coded transmission have become mainstream in the industry. In such a high-speed serial data transmission and reception process, the data driver and data receiver play the core role of connecting the internal signal of the chip with the external chip package, transmission cable, connector, etc., facing increasing design challenges . [0003] As the size of advanced CMOS continues to shrink, transistors can work to high...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/02H04B1/04
CPCH04B1/04H04L25/026
Inventor 贾海珑王昕宇
Owner 上海奥令科电子科技有限公司
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