MAX3815A TMDS数字视频均衡器，用于HDMI/DV

MAX3815A TMDS数字视频均衡器，用于HDMI/DVI电缆

概述

The MAX3815A cable equalizer automatically provides compensation for DVI™ and HDMI™ v1.3 cables. It extends the usable cable distance up to 40 meters (1.65Gbps) and 35 meters (2.25Gbps). The MAX3815A is designed to equalize signals encoded in the transition-minimized differential signaling (TMDS®) format.

The MAX3815A features four CML-differential inputs and outputs (three data and one clock). It provides a loss-of-signal (LOS) output that indicates loss-of-clock signal. The outputs include a disable function. Upon LOS, the chip is powered down. For direct chip-to-chip communication, the output drivers can be switched to one-half the DVI output specification to conserve power and reduce EMI. The output drive current can also be increased to allow the use of back termination resistors for improved signal integrity. Equalization can be automatic or set to manual control for specific in-cable applications.

The MAX3815A is available in a 7mm x 7mm, 48-pin TQFP-EP package and operates over a 0°C to +70°C temperature range.

关键特性

Guaranteed Performance to 2.25Gbps (HDMI 1.3), Improved Jitter Performance at Low Source Amplitude, and Enhanced Output Driver

Extends 2.25Gbps TMDS Interface Length

• 0 to 35 Meters Over HDMI Cable, 24 AWG
• 0 to 22 Meters Over HDMI Cable, 28 AWG

Extends 1.65Gbps TMDS Interface Length

• 0 to 40 Meters Over HDMI Cable, 24 AWG
• 0 to 28 Meters Over HDMI Cable, 28 AWG

Compatible with HDTV Resolutions 720p, 1080i, 1080p, and 1080p with 36-Bit Color

Compatible with Computer Resolutions VGA, SVGA, XGA, SXGA, UXGA, and WUXGA

Fully Automatic Equalization, No System Control Required

3.3V Power Supply

Power Dissipation of 0.6W (typ)

7mm x 7mm, 48-Pin TQFP Lead-Free Package

应用/使用

 Front-Projector HDMI/DVI Inputs
 HDMI 1.3 Deep Color Systems
 HDMI/DVI-D Cable-Extender Modules and Active Cable Assemblies
 高清晰度电视和显示器
 LCD计算机监视器
 图表

Typical Operating Circuit

MAX3815/MAX3815A,pdf datasheet (TMDS Digital Video Equalizer)