KVM延长方案

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Introduction
NS5530 is a long reach SD and HD video transmitters supporting Advanced Video Transport (AVT) technology with visually lossless digital video compression. It also supports uncompressed video transmission and is compatible with SMPTE SD-SDI, HD-SDI and 3G-SDI. NS5530 supports most VESA and HDTV video formats up to HD 1080p50/60.  
NS5530 employs Norelsys’ advanced video compression technologies and can extend the reach of HD video over UTP or coaxial cable at a serial data rate configurable from 135Mbps to 2.97Gbps. A programmable Reed-Solomon FEC block is implemented for increased reliability.
NS5530 provides channels for downstream and upstream audio transmission. NS5530 also provides data channels for the transmission of I2C, UART, IR and PS2 signals on both downstream and upstream directions.
Configuration Registers
Video Capture Logic
Audio Logic
Power Management
PLL with Low Noise VCO
Host Interface
Real-time Compression, Audio Embedding & Ancillary Data Insertion
8B/10B Encoder, Scrambler & Serializer Reed-Solomon FEC
Video Data
Audio Data
Serial Cable Driver
NS5530
SDO
SDO
SPI, I2C, UART & GPIO

Figure 1. Functional Block Diagram
1.1. Related Documents
 EDN-5096, NS5531 Full HD Video Receiver
 EDN-5078, NS2539 Advanced Video Transport (AVT) Repeater
1.2. Applications
 HDMI and DisplayPort video extension
 KVM video and control transmission
 Zero-client video transmitter