LMH0344SQ

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LMH0344SQ

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Equalizers

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  • メーカー品番 #LMH0344SQ

  • 在庫状況8849

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仕様

属性

概要

Description

The LMH0344SQ is a high-performance, multi-rate, adaptive cable equalizer designed for professional video applications. Manufactured by Texas Instruments, it is part of the LMH0344 series and is specifically engineered to compensate for transmission losses in coaxial cables, which is essential in broadcasting and professional video environments.
Key features of the LMH0344SQ include its ability to equalize SDI (Serial Digital Interface) signals, supporting data rates up to 3 Gbps, which covers standard-definition (SD), high-definition (HD), and 3G SDI applications. The device automatically adapts to the cable length and compensates for losses, ensuring signal integrity over long cable runs.
The LMH0344SQ operates with a single 3.3V power supply and is packaged in a small footprint, making it suitable for space-constrained designs. It includes additional functionalities such as a cable-length indicator, signal detect outputs, and power-saving features. This makes the LMH0344SQ an efficient solution for maintaining video quality and reliability in professional video transmission systems.

Equivalent

The LMH0344SQ is a video cable equalizer from Texas Instruments, designed for SDI video applications. Equivalent products include:
1. Gennum (now Semtech) GS3440
2. Maxim Integrated (now Analog Devices) MAX9690
3. Intersil (now Renesas) ISL59940
These chips serve similar functions for SDI cable equalization and are used in broadcast and professional video equipment for signal integrity over long cable runs. Always refer to the specific datasheets to ensure compatibility and performance requirements are met.

Features

The LMH0344SQ is a digital video broadcast component primarily used for serial digital interface (SDI) applications. It is a multi-rate adaptive cable equalizer designed to handle data rates of up to 3 Gbps, making it suitable for SD, HD, and 3G SDI video signals. Key features include:
1. Adaptive Equalization: Automatically compensates for cable loss, ensuring signal integrity over long distances.
2. Wide Range: Supports data rates from 143 Mbps to 2.97 Gbps.
3. Low Power Consumption: Designed for efficient power usage to minimize heat generation.
4. Robust Performance: Provides reliable operation in harsh conditions, including environments with high jitter or noise.
5. Integrated Functions: Features include a programmable mute, DC offset cancellation, and a signal detect feature.
6. Easy Integration: Comes in a space-efficient package with a simple pin configuration, making it easy to incorporate into existing systems.
7. Standard Compliance: Supports SMPTE standards for SD, HD, and 3G video signals.
This component is ideal for professional video systems requiring high-quality signal transmission over coaxial cable.

Pinout

The LMH0344SQ is a 16-pin device. It is a digital video cable equalizer designed to handle high-definition video signals, particularly for applications involving high-definition serial digital interface (HD-SDI) and standard-definition serial digital interface (SD-SDI). This component is part of the LMH family of cable equalizers produced by Texas Instruments.
The primary function of the LMH0344SQ is to restore signal integrity by compensating for losses incurred in long cable runs, thereby ensuring reliable data transmission. It automatically adjusts to equalize video signals, which helps maintain signal quality over extended lengths of coaxial cable. This is particularly useful in broadcast applications where maintaining the quality of video signals is crucial.
The LMH0344SQ supports data rates up to 3 Gbps, making it suitable for various video standards, including 3G-SDI, HD-SDI, and SD-SDI. It typically finds use in professional video equipment, broadcast infrastructure, and other video transmission applications where signal clarity and robustness are essential.

Manufacturer

The LMH0344SQ is manufactured by Texas Instruments. Texas Instruments, commonly referred to as TI, is a global semiconductor company that designs and produces a wide array of integrated circuits and electronic components. They primarily serve various industries, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. TI is known for its innovation and large portfolio of analog and embedded processing products, which are used in applications ranging from consumer electronics to industrial automation and automotive systems.

Application

The LMH0344SQ is a digital video reclocker designed for applications in broadcast video systems. It is commonly used in areas requiring signal integrity for high-definition and standard-definition serial digital interface (SDI) video. Key applications include video routers, distribution amplifiers, and professional video equipment such as cameras and monitors. The reclocker helps minimize jitter and maintains signal quality over long cable runs, making it essential for broadcast studio environments and live video production setups.

Package

The LMH0344SQ is a surface-mount package type known as a WQFN (Wafer Level Quad Flat No-Lead) package. Specifically, it is a 32-pin WQFN package, which provides a compact form factor ideal for high-frequency applications.