Top

Product details

Parameters

Function Cable driver, Cable driver with reclocker, Reclocker Power consumption (mW) 300 Data rate (Max) (Gbps) 11.88 Control interface 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

Features

  • Supports ST-2082 (Proposed), ST-2081 (Proposed), SMPTE 424M, 344M, 292M, 259M, DVB-ASI, SFF-8431 (SFP+) and 10GbE Ethernet for SMPTE 2022-5/6
  • Locks to Rates 11.88 Gbps, 5.94 Gbps, 2.97 Gbps, 1.485 Gbps, or Divided by 1.001 Sub-Rates, DVB-ASI (270 Mbps) and 10GbE (10.3125 Gbps)
  • Reference-Free Operation With Fast Lock Time Covering All Supported or Selected Data Rates
  • 75-Ω and 100-Ω Transmitter Outputs
  • Integrated 2:1 Mux Input, 1:2 Demux/Fanout Outputs
  • Automatic Slew Rate Based on Input Rate Detect
  • On-Chip Eye Monitor
  • Low 300-mW Power Consumption With Automatic Power Down on Loss of Input Signal
  • Programmable Through SPI or SMBus Interface
  • Single 2.5-V Supply Operation
  • Small 4-mm × 4-mm 24-Pin WQFN Package
  • –40°C to +85°C Operating Temperature Range

All trademarks are the property of their respective owners.

open-in-new Find other Serial digital interface (SDI) ICs

Description

The LMH1218 device is a low-power cable driver with integrated reclocker to drive serial video data compatible to SMPTE-SDI, SMPTE 2022-5/6, 10GbE Ethernet, and DVB-ASI standards. The LMH1218 supports up to 11.88 Gbps to enable Ultra High Definition Video for 4K/8K applications. With 75-Ω and 50-Ω transmitter outputs, the LMH1218 enables multiple media options such as coax, fiber, and FR-4 PCB.

The integrated 2-to-1 MUX on the input of the LMH1218 enables selection between two video sources, while the programmable equalizer compensates for the printed-circuit board loss to extend signal reach. With a wide range clock-and-data recovery (CDR) circuit, the on-chip reclocker automatically detects and locks to serial data from 270 Mbps to 11.88 Gbps without the need for an external reference clock and loop filter component, thereby simplifying board design and lowering system cost. The reclocked serial data can be routed to either the 75-Ω or 50-Ω transmitter output, or both simultaneously (1-to-2 fanout mode). The output voltage swing is compatible to SFF-8431 (SFP+), ST-2082/1 (Proposed), SMPTE 424M, 344M, 292M, and 259M standards.

A non-disruptive eye monitor allows for real-time measurement of serial data to simplify system start-up or field tuning. The LMH1218 can be programmed using SPI or SMBus Interface.

open-in-new Find other Serial digital interface (SDI) ICs
Download

More Information

For more information on the LMH1218 programming guide and IBIS-AMI models.  Request Now

Technical documentation

= Featured
No results found. Please clear your search and try again. View all 9
Type Title Date
* Datasheet LMH1218 Low Power Ultra HD Cable Driver With Integrated Reclocker datasheet (Rev. E) Jun. 12, 2018
Application notes LMH121x 12G SDI PCB Layout Guidelines Feb. 19, 2020
Application notes LMH12xx MADI Compatibility Application Note Aug. 30, 2018
User guides LMH1218 Programming Guide (Rev. B) Jun. 12, 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
Technical articles SigCon Architect: The keys to your high-speed design Oct. 27, 2015
Application notes SDI Video Bit Rate Calculation Apr. 10, 2015
User guides LMH1218EVM User's Guide (Rev. A) Mar. 24, 2015

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$499.00
Description

The LMH1218EVM evaluation module provides a complete high bandwidth platform to evaluate the SDI/UHD and 10 GbE signal conditioning features of the Texas Instruments LMH1218 UHD Cable Driver with Integrated Reclocker. The LMH1218EVM can be used for standard compliance testing, performance (...)

Features
  • Locks to standard SDI (2.97 Gbps, 1.485 Gbps, or divide-by-1.001 sub-rates), DVB-ASI (270 Mbps), ST-2081 (5.94 Gbps proposed), ST-2082 (11.88 Gbps proposed), and 10 GbE data rates
  • Integrated 2:1 50 Ω mux on input and 1:2 fan-out (one 75 Ω and one 50 Ω) output drivers with de-emphasis supporting (...)

Design tools & simulation

SIMULATION MODELS Download
SNLM143.PDF (25 KB) - IBIS Model
SIMULATION TOOLS Download
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 (...)
document-generic User guide

Reference designs

REFERENCE DESIGNS Download
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.
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
WQFN (RTW) 24 View options

Ordering & quality

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos

Related videos