Block Diagram (SBD) - Optical Networking: Video over Fiber

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Block Diagram

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Design Considerations

Video Over Fiber Multiplexing / Optical Transmission System (OTS)

High-Definition Video and Audio typically generate a high data amount per second when digitized. Real time delivery and synchronization between video and audio often put a high load on high-speed data networks – therefore, Video over Fiber becomes the choice for many applications.

A Closed Circuit Television (CCTV) video signal using the Color Video Baseband System (CVBS) is firstly digitized through sampling and analog to digital conversion. Multi-channel digital audio/video signals will be transformed into a high-speed bit stream by digital multiplexing technology which is usually done processing via an FPGA. The following serializing (SerDes) and the optical module work as the interface devices between the electrical & optical networks. As of today, most of the mainstream equipment uses a 10bit or 8bit resolution for the data converters, the corresponding sampling frequency is about 20MHz. In general, system performance can be achieved when the weighted signal to noise ratio is > 65dB, the differential gain < 1%, and the differential phase <1 º.

The typical Core Subsystem includes:

High Speed Amplifier: Provide signal conditioning & superior filtering capability for high signal integrity & low distortion.
Data Converter: Provide high SNR, SFDR data conversion and retention between the analog & digital domain.
Serializer/Deserializer (SerDes): For high-speed full-duplex point-to-point data transmissions.

As signal integrity & low distortion are critical to ensure high quality video signal transmissions over a long distance, Texas Instruments provides a broad and deep portfolio of high-performance analog and digital products for this application.

Application Notes (5)

Title	Abstract	Type	Size (KB)	Date	Views
High Speed Layout Guidelines	Read Abstract	HTM	8 KB	30 Nov 2006	4559
Skew definition and jitter analysis		PDF	253 KB	11 Mar 2005	2813
Using Signaling Rate and Transfer Rate (Rev. A)	Read Abstract	HTM	8 KB	07 Feb 2005	675
Refclk Jitter Analysis for the TLK2521	Read Abstract	HTM	9 KB	10 Jul 2003	345
Interfacing Between LVPECL, VML, CML and LVDS Levels	Read Abstract	HTM	9 KB	17 Dec 2002	4853

Selection and Solution Guides

Selection Guides (1)

Title	Abstract	Type	Size (KB)	Date	Views
Pin-Pin Compatible Cross Reference Guide		PDF	24 KB	21 Jan 2008	708

Product Bulletin & White Papers

Product Bulletin (1)

Title	Abstract	Type	Size (MB)	Date	Views
Microcontrollers in Optical Networking		PDF	320 KB	21 Aug 2012	863

News Releases & Authored Articles

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Training & Events

Name	Type	Available During
Video Surveillance Reference Design for IP Net Camera and DVR	Recorded Content	On Demand

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Optical Networking: Video over Fiber