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Transmitting end circuit based on JESD204B protocol

A sender and protocol technology, applied in baseband systems, electrical components, digital transmission systems, etc., can solve problems such as complex wiring, multiple interfaces, and difficulty in multi-chip synchronization, and achieve a refined design structure and simple effects

Pending Publication Date: 2020-10-30
58TH RES INST OF CETC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a sending end circuit based on the JESD204B protocol to solve the problems of the existing high-speed circuit with many interfaces, complex wiring and difficult multi-chip synchronization

Method used

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  • Transmitting end circuit based on JESD204B protocol
  • Transmitting end circuit based on JESD204B protocol
  • Transmitting end circuit based on JESD204B protocol

Examples

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Embodiment 1

[0025] The present invention provides a sending end circuit based on the JESD204B protocol, such as figure 1 As shown, it includes the transport layer (transport layer), the scrambling module (scramble) and the data link layer (data link layer).

[0026] read on figure 1 , the transport layer realizes the mapping from the original sampling data to the channel data through the data combination module (combination) and the mapping unit (mapping): the data combination module performs the relationship between the sample data according to the link configuration parameters N', N, and CS Combining, the mapping unit maps the data output by the data combination module to the corresponding output channel according to the link configuration; wherein, N' is the word length, N represents the resolution of the converter, and CS represents the control bit length. The scrambling module (scramble) realizes the scrambling function, and the scrambling function can be bypassed. The data link la...

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Abstract

The invention discloses a transmitting end circuit based on a JESD204B protocol, which belongs to the technical field of high-speed data transmission and comprises a transmission layer, a scrambling module and a data link layer. The transmission layer comprises a data combination module and a mapping unit and is used for realizing mapping from original sampling data to channel data; the scramblingmodule is used for scrambling the data output by the transmission layer; and the data link layer comprises a synchronization module, a control character insertion module and a coding module, the synchronization module realizes a protocol synchronization process, the control character insertion module inserts control characters into a data stream according to a protocol rule, and the coding modulerealizes 8B / 10B coding.

Description

technical field [0001] The invention relates to the technical field of high-speed data transmission, in particular to a sending end circuit based on the JESD204B protocol. Background technique [0002] The rapid development of 5G and Internet of Things technology has brought massive data exchange, which makes high-speed, high-precision data transmission particularly important. Most of the existing high-speed chips use LVDS interface, but the chip with LVDS interface has many pins, the wiring of the application board is complicated, and the synchronization of multiple chips is difficult. As a brand-new transmission protocol, JESD204B has many advantages such as deterministic delay, high throughput rate, and small number of pins, so it is widely used in high-speed AD / DA systems. Contents of the invention [0003] The purpose of the present invention is to provide a sending end circuit based on the JESD204B protocol, so as to solve the problems of the existing high-speed cir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/04H04L25/49H04L29/06
CPCH04B1/04H04L25/4908H04L69/26
Inventor 邵杰万书芹盛炜叶明远
Owner 58TH RES INST OF CETC
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