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LMH0044

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SMPTE 292M / 259M Adaptive Cable Equalizer

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Data sheet

LMH0044

ACTIVE
Data sheet Order now

Product details

Function Equalizer Supply voltage (V) 3.3 Power consumption (mW) 210 Data rate (max) (Mbps) 1485 Control interface Pin Operating temperature range (°C) 0 to 85
Function Equalizer Supply voltage (V) 3.3 Power consumption (mW) 210 Data rate (max) (Mbps) 1485 Control interface Pin Operating temperature range (°C) 0 to 85
WQFN (RUM) 16 16 mm² 4 x 4
  • 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 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 GS1574 and GS1574A

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  • 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 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 GS1574 and GS1574A

All trademarks are the property of their respective owners.

The LMH0044 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 LMH0044 implements DC restoration to correctly handle pathological data conditions (DC restoration may be bypassed for low data rate applications). 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 LMH0044 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 LMH0044 implements DC restoration to correctly handle pathological data conditions (DC restoration may be bypassed for low data rate applications). 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 LMH0044 SMPTE 292M / 259M Adaptive Cable Equalizer datasheet (Rev. E) 15 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 Triple Rate SDI IP FPGA Resource Utilization on SDXILEVK/AES-EXP-SDI-G Ref Dsgn (Rev. A) 26 Apr 2013
Application note High-Speed Board Layout Challenges in FPGA/SDI Sub-Systems 12 Nov 2009
Application note Timing is Everything ‚Çô The Broadcast Video Signal Path 02 Aug 2007
Design guide Broadcast Video Owner's Manual 17 Nov 2006

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