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LMH0384SQ/NOPB
3 Gbps HD/SD SDI Extended Reach and Configurable Adaptive Cable Equalizer
Equalizer
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SDI SDO
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LMH0384SNLS308G–APRIL 2009–REVISED JUNE 2015
LMH0384 3-Gbps HD- SD SDI Extended Reach and Configurable Adaptive Cable
Equalizer Features 3 DescriptionThe LMH0384 3-Gbps HD- SD SDI Extended Reach Compliant With ST 424, ST 292, ST 344, and ST and Configurable Adaptive Cable Equalizer is259 designedto equalize data transmitted over cable (or• Supports DVB-ASIat 270 Mbps any media with similar dispersive loss Wide Rangeof Data Rates: 125 Mbpsto 2.97 characteristics). The equalizer operates overa wide
rangeof data rates from 125 Mbpsto 2.97 Gbps andGbps
supports ST 424, ST 292, ST 344, and ST 259• Equalizesupto 140 Metersof Belden 1694Aat standards.2.97 Gbps,upto 200 Metersof Belden 1694Aat
1.485 Gbps,or Upto 400 Metersof Belden 1694A The LMH0384 device includes active sensing
features and design enhancements including longerat 270 Mbps
cable equalization, lower output jitter, configurable pin• Power Save Mode With Auto Sleep Control (35 mode and SPI modes,a power-saving sleep mode,mW Typical Power Consumptionin Power Save and programmable output common-mode voltage andMode) swing. The LMH0384 implements DC restorationto• Optional SPI Register Access correctly handle pathological data conditions. Manual Bypass and Output Mute Witha The LMH0384 includesan auto sleep modeto powerProgrammable Threshold down the device when no input signalis detected. Internally Terminated 100-Ω LVDS Outputs With Other features include separate carrier detect and
output mute pins which maybe tied togetherto muteSPI Programmable Output Common-Mode
the output when no input signalis present, andaVoltage and Swing
programmable mute reference which may be usedto• Programmable Launch Amplitude Optimizationin mute the output ata selectable level of signalSPI Mode degradation.• Cable Length Indicatorin SPI Mode The LMH0384 supports two modesof operation.In• Single 3.3-V Supply Operation pin mode (non-SPI mode) the LMH0384is footprint• 16-Pin WQFN Package compatible with the LMH0344 and legacy SDI
equalizers.In the optional SPI mode, the LMH0384• Industrial Temperature Range: −40°Cto +85°C
provides register accessto allof its features along• Footprint Compatible With the LMH0344, witha cable length indicator, programmable outputLMH0044, and LMH0074in Pin Mode common-mode voltage and swing, and launch
amplitude optimization.
2 Applications
Device Information(1)• ST 424, ST 292, ST 344, and ST 259 SerialDigital Interfaces• Serial Digital Data Equalization and Reception
(1) Forall available packages, see the orderable addendumat• Data Recovery Equalization(1)
the endofthe data sheet.
Functional Block Diagram
