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LMH0394SQE/NOPB

3G HD/SD SDI low power extended reach adaptive cable equalizer 16-WQFN -40 to 85

Manufacturer

Texas Instruments

Mrf. Part #

LMH0394SQE/NOPB

Package

Key Attributes

Datasheet

Products Specifications

Texas Instruments LMH0394SQE/NOPB – 3G/HD/SD‑SDI Adaptive Cable Equalizer Overview

The Texas Instruments LMH0394SQE/NOPB is a single‑channel, low‑power, extended‑reach adaptive cable equalizer designed for serial digital interface (SDI) video per SMPTE standards. Operating up to 2.97 Gbps (3G‑SDI) and housed in a compact 16‑pin WQFN (SQE) surface‑mount package, it targets high‑reliability broadcast and professional video equipment. With a qualified operating temperature range of −40°C to +85°C and RoHS‑compliant, Pb‑free construction (/NOPB suffix), the LMH0394SQE/NOPB is a strong fit for receivers, routers, switchers, and camera systems that demand robust SDI link performance.

Engineers use adaptive equalizers to combat frequency‑dependent attenuation and loss found in long SDI coaxial runs. By automatically compensating for channel impairments within the supported SMPTE standards—SMPTE 424M (3G‑SDI), SMPTE 292M (HD‑SDI), and SMPTE 259M (SD‑SDI)—the LMH0394SQE/NOPB helps maintain signal integrity at the receiver, improving link robustness without manual tuning.

Standards compliance and data‑rate support

  • Supports SMPTE 424M, 292M, and 259M, covering 3G‑SDI, HD‑SDI, and SD‑SDI.
  • Operates up to 2.97 Gbps, addressing common 3G‑SDI workflows while remaining backward‑compatible with HD and SD data rates.

These capabilities make the Texas Instruments LMH0394SQE/NOPB a practical choice when one design needs to interoperate across multiple SDI generations.

Extended‑reach adaptive equalization

The equalizer’s adaptive architecture continuously adjusts to cable loss characteristics, enabling extended reach performance within the bounds of the SMPTE standards it supports. This approach streamlines deployment across varying cable types and lengths, avoiding one‑time manual equalization settings and simplifying field maintenance. While “extended reach” indicates robust compensation, specific distance figures depend on cable type and system design and are not specified here; always refer to the TI datasheet for detailed performance guidance.

Low‑power operation for dense video systems

In multi‑channel routers, switchers, and distribution frames, power density and heat are key constraints. The LMH0394SQE/NOPB is characterized as low power, which helps ease thermal planning and supports higher channel counts in constrained enclosures. Consult the datasheet for exact power figures and budgeting in your design.

Compact WQFN packaging for space‑constrained boards

The 16‑pin WQFN (SQE) package conserves board area and supports high‑density layouts common in professional video equipment. Combined with surface‑mount assembly and tape‑and‑reel packaging, it fits streamlined manufacturing and automated placement flows.

Key Specifications

  • Brand/Manufacturer: Texas Instruments
  • MPN: LMH0394SQE/NOPB
  • Category: Video ICs – SDI Cable Equalizers
  • Function: Single‑channel adaptive cable equalizer for SDI video
  • SDI standards: SMPTE 424M (3G‑SDI), 292M (HD‑SDI), 259M (SD‑SDI)
  • Max data rate: 2.97 Gbps (3G‑SDI)
  • Channels: 1
  • Package: 16‑WQFN (SQE)
  • Mounting type: Surface Mount
  • Pin count: 16
  • Operating temperature: −40°C to +85°C
  • Lead finish: Pb‑Free (/NOPB)
  • Packaging: Tape & Reel (TR)
  • Lifecycle status: Active
  • RoHS status: RoHS Compliant

Notes:

  • Supply voltage, power consumption figures, and detailed electrical characteristics are not listed here. Refer to the TI datasheet for exact limits and typical values.

Applications and Design Scenarios

The Texas Instruments LMH0394SQE/NOPB addresses a wide range of professional video and broadcast needs:

  • Broadcast video equipment
  • SDI video receivers and distribution
  • Routers, switchers, and cameras using SDI coax

Where it fits in your signal chain

  • SDI inputs on broadcast routers and matrices: Adaptive equalization improves input robustness across varying cable lengths and conditions.
  • Camera control units and base stations: Supports reliable reception of 3G/HD/SD‑SDI feeds in production environments.
  • Distribution amplifiers and receiver modules: Helps maintain eye quality at the receiving end before downstream processing.

Benefits for engineering and operations

  • Interoperability across SDI generations: From SD through 3G‑SDI, simplifying product SKUs and deployments.
  • Reduced manual tuning: Adaptive equalization avoids fixed tuning per cable length.
  • Space and power efficiency: 16‑pin WQFN form factor and low‑power operation suit dense designs.

Integration and Layout Considerations

While the LMH0394SQE/NOPB is designed to be straightforward to integrate, SDI receiver performance depends heavily on good high‑speed layout practice. The following general guidelines can help. For device‑specific requirements (such as decoupling recommendations and land patterns), consult the Texas Instruments datasheet.

  • Maintain controlled impedance: Use 75‑ohm single‑ended traces for SDI coax paths, observing your stackup’s dielectric properties and trace geometry.
  • Short, direct routing: Keep input runs from the BNC (or other coax connector) to the equalizer as short as possible to minimize additional loss and reflections.
  • Solid return paths: Ensure continuous reference planes under high‑speed traces; avoid splits or voids that can impair return current.
  • Careful via usage: Minimize stubs and unnecessary transitions; if vias are required, consider back‑drilling or via‑in‑pad plating per your fabrication capabilities.
  • Decoupling and power integrity: Place decoupling capacitors close to the device power pins per datasheet guidance to reduce supply noise.
  • Thermal and mechanical: Follow the recommended land pattern for the 16‑WQFN (SQE) package. If the package exposes a thermal pad, adhere to TI’s guidance for soldering and vias to ground.
  • ESD and protection: Incorporate appropriate protection components for SDI inputs depending on your system’s ESD and surge environment, ensuring they are compatible with high‑speed operation.

These best practices are general to high‑speed SDI receiver design and help the LMH0394SQE/NOPB deliver its intended performance. For precise pin functions, equalization curves, and application schematics, rely on the TI documentation.

Lifecycle, Availability, and Sourcing Guidance

  • Lifecycle status: Active (per Texas Instruments)
  • RoHS and materials: RoHS Compliant; /NOPB indicates Pb‑free lead finish
  • Packaging for procurement: Tape & Reel (TR)
  • Package code: WQFN (SQE), 16 pins

Sourcing tips:

  • Verify the exact part number: LMH0394SQE/NOPB (the /NOPB suffix denotes lead‑free, RoHS‑compliant finish).
  • Confirm package and orientation with your pick‑and‑place team (16‑WQFN, SQE code) before ordering reels.
  • Check authorized distributors and TI’s product page for current lead times and stock. Availability is not specified here.
  • Consider keeping a common SDI receiver footprint strategy if your platform may need alternates in the future; however, no drop‑in alternates are specified here.

Compliance and Environmental

  • RoHS: Compliant
  • Lead finish: Pb‑Free (/NOPB)
  • Operating temperature: −40°C to +85°C

If your application requires additional environmental certifications (halogen‑free, REACH, etc.), consult TI’s compliance documents linked from the product page.

Alternatives, Upgrades, and Cross‑References

  • Replacements: None specified
  • Approved alternates: None provided

If your roadmap includes higher data rates (for example, beyond 3G‑SDI), evaluate other products in TI’s SDI portfolio. This page focuses solely on the LMH0394SQE/NOPB; do not assume pin‑compatibility or functional equivalence with other devices without reviewing their datasheets.

Practical Selection Checklist

Use this short checklist to accelerate sourcing and design sign‑off for the Texas Instruments LMH0394SQE/NOPB:

  • Data rate coverage: Up to 2.97 Gbps (3G‑SDI), backward‑compatible with HD‑SDI and SD‑SDI
  • Standards: SMPTE 424M, 292M, 259M
  • Channel count: 1 channel
  • Package and assembly: 16‑WQFN (SQE), Surface Mount; Tape & Reel for automated assembly
  • Environment: −40°C to +85°C operation
  • Compliance: RoHS Compliant; Pb‑free (/NOPB)
  • Lifecycle: Active

If all boxes are checked for your project’s requirements, proceed to the TI datasheet for electrical characteristics, application circuits, and layout guidelines.

Frequently Asked Questions (FAQs)

  • What does the /NOPB suffix mean?

  • /NOPB indicates a lead‑free, RoHS‑compliant device (no added lead).

  • What is the package for LMH0394SQE/NOPB?

  • It is supplied in a 16‑pin WQFN package with TI package code SQE, intended for surface‑mount assembly.

  • Which SDI standards are supported?

  • SMPTE 424M (3G‑SDI), SMPTE 292M (HD‑SDI), and SMPTE 259M (SD‑SDI).

  • What is the maximum supported data rate?

  • Up to 2.97 Gbps (3G‑SDI).

  • Is the LMH0394SQE/NOPB RoHS compliant?

  • Yes. It is RoHS Compliant and Pb‑free (/NOPB).

  • What is the operating temperature range?

  • −40°C to +85°C.

  • How many channels does the device provide?

  • One channel.

  • Does the LMH0394SQE/NOPB support 12G‑SDI?

  • Not specified; the listed standards cover up to 3G‑SDI.

  • Are there drop‑in replacements or approved alternates?

  • None are specified here. Review TI’s portfolio if you need different data rates or features.

  • Where can I find electrical characteristics and layout recommendations?

  • Refer to the TI datasheet for LMH0394, which provides detailed specifications and application information.

Resources

  • Product page: https://www.ti.com/product/LMH0394
  • Datasheet: https://www.ti.com/lit/ds/symlink/lmh0394.pdf

Summary

The Texas Instruments LMH0394SQE/NOPB is a focused solution for 3G/HD/SD‑SDI receiver paths that need low‑power, extended‑reach adaptive equalization in a compact 16‑pin WQFN package. It aligns with SMPTE 424M/292M/259M standards, operates up to 2.97 Gbps, and is built for robust performance across −40°C to +85°C environments. With an Active lifecycle status and RoHS‑compliant, Pb‑free construction, the LMH0394SQE/NOPB is well suited for broadcast routers, switchers, cameras, and distribution equipment. For detailed electrical limits, design examples, and layout specifics, use the TI datasheet as your authoritative reference.

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