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LMH0344GRX-NOPB

更新时间： 2024-11-21 12:09:51
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
15页 1140K
描述
3 Gbps HD/SD SDI Adaptive Cable Equalizer

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LMH0344GRX-NOPB 数据手册

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LMH0344  
www.ti.com  
SNLS233L –APRIL 2007–REVISED APRIL 2013  
3 Gbps HD/SD SDI Adaptive Cable Equalizer  
Check for Samples: LMH0344  
1
FEATURES  
DESCRIPTION  
The LMH0344 3 Gbps HD/SD SDI Adaptive Cable  
Equalizer is designed to equalize data transmitted  
over cable (or any media with similar dispersive loss  
characteristics). The equalizer operates over a wide  
range of data rates from 125 Mbps to 2.97 Gbps and  
supports SMPTE 424M, SMPTE 292M, SMPTE  
344M, and SMPTE 259M.  
2
•
SMPTE 424M, SMPTE 292M, SMPTE 344M, and  
SMPTE 259M Compliant  
•
•
Supports DVB-ASI at 270 Mbps  
Wide Range of Data Rates: 125 Mbps to 2.97  
Gbps  
•
Equalizes up to 120 Meters of Belden 1694A at  
2.97 Gbps, up to 140 Meters of Belden 1694A  
at 1.485 Gbps, or up to 400 Meters of Belden  
1694A at 270 Mbps  
The LMH0344 implements DC restoration to correctly  
handle pathological data conditions. The equalizer  
may be driven in either a single ended or differential  
configuration.  
•
•
Equalizes 0-120m of Belden 1694A at 2.97  
Gbps With 0.3 UI Maximum Output Jitter  
Additional features include separate carrier detect  
and output mute pins which may be tied together to  
mute the output when no signal is present. A  
programmable mute reference is provided to mute the  
output at a selectable level of signal degradation.  
Manual Bypass and Output Mute With a  
Programmable Threshold  
•
•
•
•
•
•
•
•
Single-Ended or Differential Input  
50Ω Differential Outputs (Internal 50Ω Pullups)  
Single 3.3V Supply Operation  
For applications which use the RGBα data patterns,  
the LMH0394 cable equalizer will provide better  
performance.  
280 mW Typical Power Consumption  
16-Pin WQFN or 25-Ball CS-BGA Package  
Industrial Temperature Range: −40°C to +85°C  
HBM ESD Rating: 8 kV  
The device is available in two space–saving  
packages: a 4 X 4 mm 16-pin WQFN and even more  
space-efficient 3 x 3 mm 25-ball CS-BGA package.  
WQFN Version Footprint Compatible With the  
LMH0044 and LMH0074  
•
Replaces the Gennum GS2974A or GS2974B  
APPLICATIONS  
•
SMPTE 424M, SMPTE 292M, SMPTE 344M, and  
SMPTE 259M Serial Digital Interfaces  
•
•
Serial Digital Data Equalization and Reception  
Data Recovery Equalization  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
All trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2007–2013, Texas Instruments Incorporated  
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