A low-cost sfp module with high-precision digital diagnostic function

A digital diagnosis and high-precision technology, applied in electromagnetic wave transmission systems, optical fiber transmission, electrical components, etc., can solve the problems of limited resolution, high cost of optical modules, and many peripheral devices, and achieves improved receiving sensitivity, improved transmission performance, Reduce the effect of peripheral devices

Active Publication Date: 2011-12-28
成都新易盛通信技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] 1. The scheme of independent laser driver chip and limiting amplifier chip is not high in integration, there are many peripheral devices, and the cost of optical module is high;
[0019] 2. Using a general-purpose microprocessor, the ADC generally has only 8 to 10 bits, and the resolution is limite

Method used

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  • A low-cost sfp module with high-precision digital diagnostic function
  • A low-cost sfp module with high-precision digital diagnostic function
  • A low-cost sfp module with high-precision digital diagnostic function

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Embodiment Construction

[0044] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0045] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0046] Such as figure 1, The SFP optical module disclosed in the present invention includes a 20-pin golden finger electrical interface unit, a controller unit, a laser driver and a limiting amplifier unit, an optical transmission interface component, and an optical reception interface component that meet the definition of the MSA (Multiple Agreement) specification.

[0047] The present invention adopts the DS1856 chip to constitute the contr...

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Abstract

The invention, which relates to the fiber optical communication technology field, discloses a small from-factor pluggable (SFP) module with low costs and a high precision digit diagnosis function. The invention aims at providing a SFP module which is with low costs and possesses a digital diagnosis function provided in a SFF-8472. The invention is characterized in that: using a single chip, which is integrated by a laser driver and a limiting amplifier, and cooperating with a controller unit so as to realize a high precision digit diagnosis function; accessing a filter between a light receiving interface component, the laser driver and the limiting amplifier of a limiting amplifier unit so as to improve sensitivity of the module and signal quality; adopting a applied resistor mode to a pin of a digital potentiometer of the controller unit so as to avoid a fault problem of nonluminescence when power is on. The SFP module can be used for a LC bi-directional single fiber SFP module, a SC bi-directional single fiber SFP module and a LC two fiber SFP module.

Description

technical field [0001] The invention relates to optical fiber communication technology, in particular to an SFP module with high-precision digital diagnosis function. Background technique [0002] Explanation of abbreviations in the text [0003] APC (Automatic Power Control) automatic power control [0004] APD (Avalanche Photo Diode) Avalanche Photodiode [0005] BOSA (Bidirectional Optical Sub-Assembly) bidirectional interface assembly [0006] DDM (Digital Diagnostic Monitor) digital diagnostic monitoring [0007] LA (Limit Amplifier) ​​Limiting Amplifier [0008] LDD (Laser Diode Driver) laser diode driver [0009] MSA (Multi-Source Agreement) multi-source agreement [0010] PIN (Positive Intrinsic-Negative) PIN diode [0011] ROSA (Receiver Optical Sub-Assembly) optical receiving interface assembly [0012] SFP (Small From-Factor Pluggable) Small Form Factor Pluggable Optical Module [0013] TIA (Trans-Impedance Amplifier) ​​transimpedance amplifier [0014] ...

Claims

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Application Information

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IPC IPC(8): H04B10/24H04B10/25
Inventor 宛明黄小雷
Owner 成都新易盛通信技术股份有限公司
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