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LMH0074

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SMPTE 259M / 344M Adaptive Cable Equalizer

Product details

Function Equalizer Supply voltage (V) 3.3 Power consumption (mW) 210 Data rate (max) (Mbps) 540 Control interface Pin Operating temperature range (°C) -40 to 85
Function Equalizer Supply voltage (V) 3.3 Power consumption (mW) 210 Data rate (max) (Mbps) 540 Control interface Pin Operating temperature range (°C) -40 to 85
WQFN (RUM) 16 16 mm² 4 x 4
  • SMPTE 259M and SMPTE 344M Compliant
  • Supports DVB-ASI at 270 Mbps
  • Data Rates: 125 Mbps to 540 Mbps
  • Equalizes up to 400 Meters of Belden 1694A at 270 Mbps
  • Manual Bypass and Output Mute with a Programmable Threshold
  • Single-Ended or Differential Input
  • 50Ω Differential Outputs
  • Single 3.3V Supply Operation
  • Industrial Temperature Range: −40°C to +85°C
  • 208mW Typical Power Consumption with 3.3V Supply
  • Footprint Compatible with the LMH0044 and the GS9074A

All trademarks are the property of their respective owners.

  • SMPTE 259M and SMPTE 344M Compliant
  • Supports DVB-ASI at 270 Mbps
  • Data Rates: 125 Mbps to 540 Mbps
  • Equalizes up to 400 Meters of Belden 1694A at 270 Mbps
  • Manual Bypass and Output Mute with a Programmable Threshold
  • Single-Ended or Differential Input
  • 50Ω Differential Outputs
  • Single 3.3V Supply Operation
  • Industrial Temperature Range: −40°C to +85°C
  • 208mW Typical Power Consumption with 3.3V Supply
  • Footprint Compatible with the LMH0044 and the GS9074A

All trademarks are the property of their respective owners.

The LMH0074 SMPTE 259M / 344M 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 540 Mbps and supports SMPTE 259M and SMPTE 344M.

The LMH0074 implements DC restoration to correctly handle pathological data conditions. The equalizer may be driven in either a single ended or differential configuration.

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.

The LMH0074 SMPTE 259M / 344M 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 540 Mbps and supports SMPTE 259M and SMPTE 344M.

The LMH0074 implements DC restoration to correctly handle pathological data conditions. The equalizer may be driven in either a single ended or differential configuration.

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.

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Type Title Date
* Data sheet LMH0074 SMPTE 259M / 344M Adaptive Cable Equalizer datasheet (Rev. D) 16 Apr 2013
Selection guide Broadcast and Professional Video Interface Solutions (Rev. E) 05 Apr 2017
Application note AN-1943 Understanding Serial Digital Video Bit Rates (Rev. A) 26 Apr 2013
Application note AN-2145 Power Considerations for SDI Products (Rev. B) 26 Apr 2013
Application note AN-2146 Power Design for SDI and Other Noise-Sensitive Devices (Rev. A) 26 Apr 2013
Application note Replacing the CLC012 Adaptive Cable Equalizer with the LMH0074 (Rev. A) 26 Apr 2013
Application note Replacing the CLC014 Adaptive Cable Equalizer with the LMH0074 (Rev. A) 26 Apr 2013
Application note High-Speed Board Layout Challenges in FPGA/SDI Sub-Systems 12 Nov 2009
Design guide Broadcast Video Owner's Manual 17 Nov 2006

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