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LMH0394SQX/NOPB

TILMH0394SQX/NOPB

Texas Instruments
Amplifier Interface 16-WQFN (4x4)
Active

Overview

The LMH0394 is a 3G-SDI adaptive cable equalizer designed to recover data transmitted over long lengths of coaxial cable. It supports data rates from 125 Mbps to 2.97 Gbps, automatically compensating for cable losses to ensure signal integrity in high-definition video broadcasting.

Why Choose This Part

This device features an integrated cable length indicator and an auto-sleep mode that reduces power consumption to 7000uA when no signal is detected. It includes programmable output de-emphasis to compensate for FR4 board trace losses and offers a digital MUTEREF threshold for precise noise squelching.

Applications

Broadcast Video Routers
High-density switching systems requiring robust signal recovery for 3G, HD, and SD-SDI formats.
Digital Cinema Systems
Processing high-bandwidth uncompressed video streams over extended cable runs.
Distribution Amplifiers
Maintaining signal quality across multiple output stages in professional video distribution networks.
Security Surveillance
Long-distance HD-SDI camera links where signal degradation over FR4 traces and coax must be minimized.

Key Specifications

Interface SPI Serial
Applications Amplifier
Mounting Type Surface Mount
Package / Case 16-WQFN Exposed Pad
Voltage - Supply 2.375V ~ 2.625V
Supplier Device Package 16-WQFN (4x4)

Getting Started

Designers should place the WQFN-16 package close to the BNC connector to minimize input trace length. Configuration can be handled via hardware pins or the optional SPI register interface for advanced tuning of output swing and common-mode voltage. Evaluation boards like the LMH0394EVK are available to test performance across various cable types and lengths.

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