
General Description
The MAX3815 cable equalizer automatically provides
compensation for DVI™, HDMI™, DFP, PanelLink
®
, and
ADC cables. It extends the usable cable distance up to
36 meters. The MAX3815 is designed to equalize sig-
nals encoded in the transition-minimized differential
signaling (TMDS
®
) format.
The MAX3815 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 sig-
nal. The outputs include a disable function or the
equalizer can be powered down to conserve power.
For direct chip-to-chip communication, the output dri-
vers can be switched to one-half the DVI output specifi-
cation to conserve power and reduce EMI. Equalization
can be automatic or set to manual control for specific
in-cable applications.
The MAX3815 is available in a 7mm x 7mm, 48-pin
TQFP-EP package and operates over a 0°C to +70°C
temperature range.
Applications
Front-Projector DVI/HDMI Inputs
High-Definition Televisions and Displays
DVI-D/HDMI Cable-Extender Modules and Active
Cable Assemblies
LCD Computer Monitors
Features
♦ Extends TMDS Cable Reach to Projectors or
Monitors Using DVI, DFP, PanelLink, ADC, or
HDMI Interfaces
♦ Extends TMDS Interface Length as Follows:
0 to 50 Meters Over DVI-Cable, 24 AWG STP
(Shielded-Twisted Pair)
0 to 36 Meters Over DVI-Cable, 28 AWG STP
0 to 30 Meters Over DVI-Cable, 30 AWG STP
♦ Compatible with DTV Resolutions 480i, 480p,
720p, 1080i, and 1080p
♦ Compatible with Computer Resolutions VGA,
SVGA, XGA, SXGA, UXGA
♦ Fully Automatic Equalization Up to 40dB at
825MHz (1.65Gbps), No System Control Required
♦ 3.3V Power Supply
♦ Power Dissipation of 0.6W (typ)
♦ 7mm x 7mm 48-Pin TQFP Lead-Free Package
MAX3815
TMDS Digital Video Equalizer for DVI/HDMI
Cables
________________________________________________________________
Maxim Integrated Products
1
Ordering Information
RGB/HV
ADC/SYNC
TMDS
DESERIALIZER
SELECT
IMAGE
SCALER AND
PROCESSOR
PANEL
INTERFACE
TIMING AND
DRIVERS
LCD,
DLP,
OR
LCOS
VGA INPUT
DVI-D INPUT
DVI-D CABLE UP
TO 36m OR 120ft
(28AWG STP)
LAPTOP
VIDEO PROJECTOR
MAX3815
EQUALIZER
Typical Application Circuits
19-3466; Rev 2; 2/08
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
EVALUATION KIT
AVAILABLE
PART
TEMP
RANGE
PIN-
PACKAGE
PKG
CODE
MAX3815CCM 0°C to +70°C 48 TQFP-EP*
C48E-8
MAX3815CCM+ 0°C to +70°C 48 TQFP-EP* C48E-8
+
Denotes lead-free package.
*EP = Exposed pad.
Typical Application Circuits continued at end of data sheet.
Pin Configuration appears at end of data sheet.
DVI is a trademark of Digital Display Working Group.
HDMI is a trademark of HDMI Licensing, LLC.
PanelLink and TMDS are registered trademarks of Silicon Image, Inc.
通用描述
MAX3815 电缆均衡器自动为 DVI™、HDMI™、DFP、
PanelLink
®
, andADC 电缆提供补偿。它将可用电缆距离延
长至最多 36 米。MAX3815 旨在均衡使用过渡最小化差分信
号 (TMDS
®
) format. 编码的信号。
MAX3815具有四个CML差分输入和输出(三个数据通道和
一个时钟通道)。它提供了一个信号丢失(LOS)输出,用于
指示时钟信号丢失。输出包含禁用功能,或者均衡器可以关
闭以节省电力。对于直接芯片间通信,输出驱动器可以切换
到DVI输出规格的一半,以节省电力并减少电磁干扰。均衡
可以是自动的,也可以设置为手动控制,以适应特定的电缆
内应用。
MAX3815采用7mm x 7mm、48引脚TQFP-EP封装,工作
温度范围为0°C至+70°C。
Applications
前投影仪 DVI/HDMI 输入 高清电视和显示器 DVI-D/
HDMI 电缆扩展模块和有源
电缆组件 LCD 计算机显
示器
Features
♦ 延长TMDS电缆到投影仪或
使用DVI、DFP、PanelLink、ADC或HDMI接口的
显示器
♦ 按如下方式延长TMDS接口长度:
0到50米 过DVI线缆,24 AWG STP(屏蔽双绞线
) 0到36米 过DVI线缆,28 AWG STP 0到30米
过DVI线缆,30 AWG STP
♦ 与DTV分辨率480i,480p兼容,
720p,1080i和1080p
♦ 与计算机分辨率VGA兼容,
♦ 最高40dB的全自动均衡
825MHz(1.65Gbps),无需系统控制
♦ 3.3V电源 ♦ 典型功耗0.6W
♦ 7mm x 7mm 48引脚无铅TQFP封装
MAX3815
TMDS数字视频均衡器,用于DVI/HDMI
Cables
________________________________________________________________ 美信集成产品
订购信息
RGB/HV
ADC/SYNC
TMDS
DESERIALIZER
SELECT
IMAGE
PANEL
LAPTOP
典型应用电路
19-3466;修订版2;08年2月
有关价格、交货和订购信息,请联系Maxim Direct,电话:1-888-629-4642,或访问Maxim的网站:w
ww.maxim-ic.com。
PART
MAX3815CCM 0°C 至 +70°C 48 引脚 TQFP-EP*
C48E-8
MAX3815CCM+ 0°C 至 +70°C 48 引脚 TQFP-EP*C48E-8
+表示无铅封装。 *EP = 暴露
焊盘。
典型应用电路续于数据表末尾。
引脚配置出现在数据表的末尾。
DVI 是数字显示工作组的商标。HDMI 是 HDMI Licensi
ng, LLC 的商标。
PanelLink 和 TMDS 是 Silicon Image, Inc. 的注册商标。
翻译仅供参考,如需更精准的信息,请参阅英文版。