Inicio Interfaz Circuitos integrados de interfaz digital serie (SDI)

LMH1219

ACTIVO

Ecualizador de cable adaptativo SDI de 12 G con reclocker integrado

Detalles del producto

Function Equalizer, Equalizer with reclocker, Reclocker Power consumption (mW) 250 Data rate (max) (Mbps) 11880 Control interface Pin, SMBus, SPI Operating temperature range (°C) -40 to 85
Function Equalizer, Equalizer with reclocker, Reclocker Power consumption (mW) 250 Data rate (max) (Mbps) 11880 Control interface Pin, SMBus, SPI Operating temperature range (°C) -40 to 85
WQFN (RTW) 24 16 mm² (4 mm × 4 mm)
  • 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
  • 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

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).

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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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LMH1219 Low Power 12G UHD Adaptive Cable Equalizer with Integrated Reclocker datasheet (Rev. D) PDF | HTML 8/06/2018
Nota sobre la aplicación LMH121x 12G SDI PCB Layout Guidelines 19/02/2020
Nota sobre la aplicación LMH12xx MADI Compatibility Application Note PDF | HTML 30/08/2018
Artículo técnico Three reasons why a bidirectional I/O will simplify your next 4K video design PDF | HTML 6/09/2017
Artículo técnico Three things to consider when upgrading to 4K Ultra HD 12G-SDI interfaces PDF | HTML 13/04/2016

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

LMH1219EVM — Módulo de evaluación LMH1219 de ecualizador de cable adaptativo ultra HD con reclocker integrado

La placa de evaluación LMH1219EVM proporciona una plataforma completa de ancho de banda alto para evaluar las funciones de acondicionamiento de señal de 10 GbE y de la interfaz digital en serie (SDI) del ecualizador de cable UHD LMH1219 de Texas Instruments. LMH1219EVM puede utilizarse para (...)
Guía del usuario: PDF
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Diseño de referencia

TIDA-00428 — Repetidor SDI y video sobre IP de 12 Gbps con función de enclavamiento

Este diseño de referencia verificado es un repetidor de 12 G SDI y Video sobre IP con función de resincronización, compatible con los estándares SMPTE (ST-2082, ST-2081, ST-424, ST-292 y ST-259) y con los requisitos eléctricos de 10 GbE. Este diseño se puede utilizar en aplicaciones de cable (...)
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Pedidos y calidad

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