LMH0034 LMH0034 SMPTE 292M / 259M Adaptive Cable Equalizer | TI.com

This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
LMH0034 SMPTE 292M / 259M Adaptive Cable Equalizer


Recommended alternative parts

  • LMH0002  -  HD/SD Serial Digital Cable Driver
  • LMH0030  -  HD/SD Digital Video Serializer W/ FIFOs And Integrated Cable Driver
  • LMH0031  -  HD/SD Digital Video Deserializer & Descrambler


The LMH0034 SMPTE 292M / 259M adaptive cable equalizer is a monolithic integrated circuit for equalizing 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 1.485 Gbps and supports SMPTE 292M, SMPTE 344M and SMPTE 259M.

The LMH0034 implements DC restoration to correctly handle pathological data conditions. DC restoration can be bypassed for low data rate applications. The equalizer is flexible in allowing either single-ended or differential input drive.

Additional features include a combined carrier detect and output mute pin which mutes the output when no signal is present. A programmable mute reference is used to mute the output at a selectable level of signal degradation. A cable length indicator is provided to determine the amount of cable being equalized.


  • SMPTE 292M, SMPTE 344M and SMPTE 259M Compliant
  • Supports DVB-ASI at 270 Mbps
  • Data Rates: 125 Mbps to 1.485 Gbps
  • Equalizes up to 200 Meters of Belden 1694A at 1.485 Gbps or up to 400 Meters of Belden 1694A at 270 Mbps
  • Manual Bypass, Cable Length Indicator, and Output Mute with a Programmable Threshold
  • Single-Ended or Differential Input
  • 50Ω Differential Outputs
  • Single 3.3V Supply Operation
  • 208 mW Typical Power Consumption with 3.3V Supply
  • Replaces the GS1524 and GS1524A

All trademarks are the property of their respective owners.


Compare all products in Serial digital interface (SDI) Email Download to Excel
Part number Order Function Data rate (Max) (Gbps) Power consumption (mW) Control interface Package Group Package size: mm2:W x L (PKG) Operating temperature range (C)
LMH0034 Order now Equalizer     1.485     210     Pin     SOIC | 16     16SOIC: 59 mm2: 6 x 9.9 (SOIC | 16)     0 to 85    
LMH0002 Order now Cable driver     1.485     150     Pin     SOIC | 8
WQFN | 16    
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
16WQFN: 16 mm2: 4 x 4 (WQFN | 16)    
-40 to 85