LMH1239EVM

LMH1239 evaluation module

LMH1239EVM

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Overview

The LMH1239 is a long reach adaptive cable equalizer with integrated reclocker, dual-inputs, dual-outputs and 75Ω loop-through output. The device is designed to equalize data transmitted over 75Ω coaxial cable and operates across SMPTE data rates ranging from 125 Mbps to 11.88 Gbps. The adaptive equalizer at the SDI input enables automatic loss compensation for up to 100m Belden1694A cable reach in 4K and 8K video applications where 12G-SDI (11.88 Gbps) is used. The integrated reclocker attenuates high frequency jitter and fully regnerates the data using a clean, low-jitter clock. The reclocker loop filter is adjustable with optional external capacitor for SDI cascade applications.

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Important note
Limited quantities

LMH1239EVM is a prototype evaluation module and is available in limited quantities.

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  • Adaptive cable equalizer with integrated reclocker
  • Supports ST-2082-1(12G), ST-2081-1(6G), ST-424(3G), ST-292(HD) and ST-259(SD)
  • Integrated referenceless reclocker locks to SMPTE  rates: 11.88 Gbps, 5.94 Gbps, 2.97 Gbps, 1.485 Gbps, or divide-by-1.001 sub-rates, 270 Mbps
  • -40°C to 85°C operating temperature
  • Programmable by pin, SPI or SMBus Interface

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Evaluation board

LMH1239EVM — LMH1239 evaluation module

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Technical documentation

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Type Title Date
EVM User's guide LMH1239 Evaluation Module User's Guide PDF | HTML 15 May 2024
Certificate LMH1239EVM EU Declaration of Conformity (DoC) 22 Apr 2024

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