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Intersil ISL5960x MegaQ视频均衡解决方案

关键词:工业控制 视频监视 通信技术 网络通信

时间:2011-01-06 10:32:24       作者:Intersil       来源:ISL5960x

Intersil 公司的MegaQ ISL5960x系列是单路自适应视频均衡器,适用于长达1600米的Cat 5/6电表缆和长达6000英尺(1800米)的RG-59电缆,可以补偿电缆损耗达60dB,源放大变化±3dB.器件单电源5V工作,能为两个75欧姆负载提供2VP-P输出,能和彩色或单色,NTSC或PAL信号兼容,主要应用在视频监视和视频分配.本文介绍了ISL5960x系列主要特性,方框图, 典型应用电路图以及ISL59605-SPI-EVALZ评估板电路图和材料清单.

The ISL59601, ISL59602, ISL59603, ISL59604, and ISL59605 (the “MegaQ™” product family) are single-channel adaptive equalizers designed to automatically compensate for long runs of Cat 5/6 or RG-59 cable, producing high quality video output with no user interaction. The ISL59601 equalizes Cat 5/6 up to a distance of 1000 feet (300 meters), while the ISL59605 equalizes up to 5300 feet (1600 meters).

MegaQ™ compensates for high frequency cable losses of up to 60dB (ISL59605) at 5MHz as well as source amplitude variations up to ±3dB.

The ISL59601, ISL59602, ISL59603, ISL59604, and ISL59605 operate from a single +5V supply. Inputs are AC-coupled and internally DC-restored. The output can drive 2VP-P into two source-terminated 75Ω loads (AC-coupled or DC-coupled).

ISL5960x主要特性:

• ISL59605 Equalizes Up to 1 Mile (1600m) of Cat 5/6 and Up to 6000 Feet (1800m) of RG-59

• Fully Automatic, Stand-Alone Operation - No User Adjustment Required

• ±8kV ESD Protection on All Inputs

• Automatic Cable Type Compensation

• Compatible with Color or Monochrome, NTSC or PAL Signals

• Automatic Polarity Detection and Inversion

• Compensates for ±3dB Source Variation (in Addition to Cable Losses)

• Optional Serial Interface Adds Additional Functionality

• 5MHz -3dB Bandwidth

• Works with Single-Ended or Differential Inputs

• Output Drives Up to Two 150Ω Video Loads

ISL5960x应用:

• Surveillance Video

• Video Distribution

图1. ISL5960x系列方框图

图2. ISL5960x系列典型应用电路图

图3. ISL59605-SPI-EVALZ评估板采用UTP电缆的应用电路图(串行接口)

ISL59605-SPI-EVALZ评估板

The ISL59605-SPI-EVALZ board is designed to allow evaluation of the ISL5960x (MegaQ™) family of parts, as well as provide the reference schematic and PCB layout of a MegaQ™ implementation on a 4-layer PCB. In addition to the MegaQ™ equalization path, the board features a USB interface that allows access to and control of MegaQ™ internal configuration registers, enabling a few more features than are available when using the stand-alone configuration。

图4.ISL59605-SPI-EVALZ评估板外形图

图5.ISL59605-SPI-EVALZ评估板电路图
ISL59605-SPI-EVALZ评估板材料清单(BOM):

详情请见:
http://www.intersil.com/data/fn/fn6739.pdf

http://www.intersil.com/data/an/an1588.pdf

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