Product details


Function Equalizer, Equalizer with reclocker, Reclocker Power consumption (mW) 250 Data rate (Max) (Gbps) 11.88 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-2082-1(12G), ST-2081-1(6G), ST-424(3G), ST-292(HD), and ST-259(SD)
  • Supports SFF8431 (SFP+) for SMPTE 2022-5/6
  • Compatible with DVB-ASI and AES10 (MADI)
  • Integrated Reference-Less Reclocker Locks to SMPTE and 10GbE Rate: 11.88 Gbps, 5.94 Gbps, 2.97 Gbps, 1.485 Gbps, or Divide-by-1.001 Sub-Rates, 270 Mbps and 10.3125 Gbps
  • Adaptive Cable Equalizer at Input 0 (IN0)
  • Cable Reach (Belden 1694A):
    • 75 m at 11.88 Gbps (4Kp60 UHD)
    • 120 m at 5.94 Gbps (UHD)
    • 200 m at 2.97 Gbps (FHD)
    • 280 m at 1.485 Gbps (HD)
    • 600 m at 270 Mbps (SD)
  • Adaptive Board Trace Equalizer at Input 1 (IN1)
  • Low Power: 250 mW (Typical)
  • Power Saving Mode: 16 mW
  • Integrated Input Return Loss Network
  • 2:1 Input Mux, 1:2 Fanout Output With De-Emphasis
  • Supports Signal Splitter Mode (–6 dB Launch Amplitude)
  • On-Chip Loop Filter Capacitor and Eye Monitor
  • Powers from Single 2.5 V with On-Chip 1.8 V Regulator
  • 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 LMH1219 is a low-power, dual-input and dual-output, adaptive equalizer with integrated reclocker. It supports SMPTE video rates up to 11.88 Gbps and 10 GbE video over IP, enabling UHD video for 4K/8K applications. An extended reach adaptive cable equalizer at IN0 is designed to equalize data transmitted over 75 Ω coaxial cable and operates over a wide range of data rates from 125 Mbps to 11.88 Gbps. An adaptive board trace equalizer at IN1 is SFF-8431 compatible and supports both SMPTE and 10 GbE data rates.

The integrated reclocker attenuates high frequency jitter and provides the best signal integrity. High input jitter tolerance of the reclocker improves timing margin. The reclocker has a built-in loop filter, and operates without the need of a precision input reference clock. A non-disruptive eye monitor allows real time measurement of the serial data to simplify system debug and accelerate board bring-up.

The integrated 2:1 Mux and 1:2 Fanout provide flexibility for multiple video signals. The output drivers offer programmable de-emphasis to compensate board trace losses at its outputs. The integrated return loss network meets stringent SMPTE specifications across all data rates. The typical power consumption of LMH1219 is 250 mW. In the absence of input signal, power is further reduced to 16 mW.

The LMH1219 is pin compatible to LMH1226 (12G UHD reclocker) and LMH0324 (3G adaptive cable equalizer).

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More Information

For more information on the LMH1219 programming guide and IBIS-AMI models.  Request Now

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 6
Type Title Date
* Datasheet LMH1219 Low Power 12G UHD Adaptive Cable Equalizer with Integrated Reclocker datasheet (Rev. D) Jun. 08, 2018
Application note LMH121x 12G SDI PCB Layout Guidelines Feb. 19, 2020
Application note LMH12xx MADI Compatibility Application Note Aug. 30, 2018
User guide LMH1219EVM User's Guide (Rev. A) Jun. 11, 2018
Technical articles Three reasons why a bidirectional I/O will simplify your next 4K video design Sep. 06, 2017
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.

Hardware development

The LMH1219EVM Evaluation Board provides a complete high bandwidth platform to evaluate the SDI and 10 GbE signal conditioning features of the Texas Instruments LMH1219 UHD Cable Equalizer. The LMH1219EVM can be used for standard compliance testing, performance evaluation, and initial system (...)

Design tools & simulation

PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
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 (...)

Reference designs

12-Gbps SDI and Video Over IP Repeater With Reclocking Function
TIDA-00428 — This verified reference design is a 12G SDI and Video over IP repeater with reclocking function compatible with SMPTE (ST-2082, ST-2081, ST-424, ST-292, and ST-259) and 10 GbE electrical requirements. This design is applicable to either coax or optical cable applications.
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