Product details


Function Equalizer Power consumption (mW) 78 Data rate (Max) (Gbps) 2.97 Control interface Pin, SMBus, SPI Operating temperature range (C) -40 to 85 open-in-new Find other Serial digital interface (SDI) ICs

Package | Pins | Size

WQFN (RTW) 24 16 mm² 4 x 4 open-in-new Find other Serial digital interface (SDI) ICs


  • Supports ST 424(3G), ST 292(HD), and ST 259(SD)
  • Compatible with DVB-ASI and AES10 (MADI)
  • Adaptive Cable Equalizer
  • Cable Reach (Belden 1694A):
    • 200 m at 2.97 Gbps
    • 280 m at 1.485 Gbps
    • 600 m at 270 Mbps
  • Low Power: 78 mW (typical)
  • Power Save Mode: 15 mW
  • On-chip Input Termination (75 Ω single-ended)
  • Integrated Input Return Loss Network
  • Dual 100-Ω Output Drivers With De-Emphasis
  • Independent Output Power-Down Control
  • Supports Signal Splitter Mode (–6 dB Launch Amplitude)
  • Cable Length Indicator
  • Digital MUTEREF Threshold
  • Powers from 2.5-V or 1.8-V Supply
  • Configurable by Control Pins, SPI, or SMBus Interface
  • 4-mm × 4-mm 24-pin QFN Package
  • Operating Temperature Range: –40°C to +85°C

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The LMH0324 is a low-power, dual-output, extended reach adaptive cable equalizer. It is designed to equalize SDI data transmitted over 75-Ω coax cable. The equalizer operates over a wide range of data rates from 125 Mbps to 2.97 Gbps. The equalizer includes an active sensing circuitry that ensures robust performance and enhanced immunity to variations in the input signal launch amplitude.

The LMH0324 provides extended cable reach with low power consumption. It offers power management to reduce power consumption further when no input signal is present.

The LMH0324 has two differential serial data outputs, which provide flexibility for fan-out buffering. The output drivers offer programmable de-emphasis to compensate for board trace losses at the LMH0324 outputs. The operating state of the LMH0324 can be set via pin control. Additional settings of the device can be programmed via SPI or SMBus interface.

The LMH0324 is pin-compatible to the LMH1219 (12-Gbps adaptive cable equalizer with integrated reclocker). The pin compatibility allows ease of upgrade from a 3-Gbps equalizer to a 12-Gbps equalizer with integrated reclocker.

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More Information

For more information on the LMH0324 programming guide and IBIS-AMI models.  Request Now

Technical documentation

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Type Title Date
* Datasheet LMH0324 3G/HD/SD SDI Dual Output Adaptive Cable Equalizer datasheet (Rev. B) Jun. 07, 2018
Application notes LMH12xx MADI Compatibility Application Note Aug. 30, 2018
User guides LMH0324-18EVM User Guide (Rev. A) Jun. 11, 2018
Technical articles Three things to consider when upgrading to 4K Ultra HD 12G-SDI interfaces Apr. 13, 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Design tools & simulation

SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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Reference designs

3G-SDI Repeater With Reclocking Function Reference Design
TIDA-03028 — This verified reference design is functionally an SDI repeater/signal conditioning solution for 3G SDI applications. This reference design is compatible with SMPTE ST-424, ST-292, and ST-259 electrical requirements.
document-generic Schematic document-generic User guide

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WQFN (RTW) 24 View options

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