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ICs für serielle digitale Schnittstelle (SDI)

LMH0395

AKTIV

3G HD/SD SDI-Doppelausgang mit geringem Stromverbrauch und erweiterter Reichweite, adaptiver Kabeleq

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Datenblatt

LMH0395

AKTIV
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Produktdetails

Function Equalizer Supply voltage (V) 2.5 Power consumption (mW) 140 Data rate (max) (Mbps) 2970 Control interface Pin, SPI Operating temperature range (°C) -40 to 85
Function Equalizer Supply voltage (V) 2.5 Power consumption (mW) 140 Data rate (max) (Mbps) 2970 Control interface Pin, SPI Operating temperature range (°C) -40 to 85
WQFN (RTW) 24 16 mm² 4 x 4
  • ST 424, ST 292, ST 344, ST 259, and DVB-ASI Compliant(1)
  • Equalized Cable Lengths (Belden 1694A): 200 Meters at 2.97 Gbps, 220 Meters at 1.485 Gbps, and 400 Meters at 270 Mbps
  • Ultra-low Power Consumption: 140 mW (Dual Outputs), 115 mW (Single Output)
  • Dual Differential Outputs; Second Output Can Be Independently Powered Down
  • Power-Save Mode With Auto Sleep Control (17-mW Typical Power Consumption in Power-Save Mode)
  • Designed for Crosstalk Immunity
  • Output De-Emphasis to Compensate for FR4 Board Trace Losses
  • Digital and Analog Programmable MUTEREF Threshold
  • Optional SPI Register Access and Pin Mode Operation
  • Input Data Rates: 125 Mbps to 2.97 Gbps
  • Internally Terminated 100-Ω LVDS Outputs With Programmable Output Common-Mode Voltage and Swing
  • Programmable Launch Amplitude Optimization
  • Cable Length Indicator
  • Single 2.5-V Supply Operation
  • 24-Pin WQFN Package
  • Industrial Temperature Range: −40°C to +85°C
  • ST 424, ST 292, ST 344, ST 259, and DVB-ASI Compliant(1)
  • Equalized Cable Lengths (Belden 1694A): 200 Meters at 2.97 Gbps, 220 Meters at 1.485 Gbps, and 400 Meters at 270 Mbps
  • Ultra-low Power Consumption: 140 mW (Dual Outputs), 115 mW (Single Output)
  • Dual Differential Outputs; Second Output Can Be Independently Powered Down
  • Power-Save Mode With Auto Sleep Control (17-mW Typical Power Consumption in Power-Save Mode)
  • Designed for Crosstalk Immunity
  • Output De-Emphasis to Compensate for FR4 Board Trace Losses
  • Digital and Analog Programmable MUTEREF Threshold
  • Optional SPI Register Access and Pin Mode Operation
  • Input Data Rates: 125 Mbps to 2.97 Gbps
  • Internally Terminated 100-Ω LVDS Outputs With Programmable Output Common-Mode Voltage and Swing
  • Programmable Launch Amplitude Optimization
  • Cable Length Indicator
  • Single 2.5-V Supply Operation
  • 24-Pin WQFN Package
  • Industrial Temperature Range: −40°C to +85°C

The LMH0395 3-Gbps HD/SD SDI Dual Output Low Power Extended Reach Adaptive Cable Equalizer is designed to equalize data transmitted over cable (or any media with similar dispersive loss characteristics). The equalizer operates over a wide range of data rates from 125 Mbps to 2.97 Gbps and supports ST 424, ST 292, ST 344, ST 259, and DVB-ASI standards.

The LMH0395 device provides extended cable reach with improved immunity to crosstalk and ultra low power consumption. The equalizer includes active sensing circuitry that ensures robust performance and enhanced immunity to variations in the input signal launch amplitude. The LMH0395 offers power management to further reduce power consumption when no input signal is present.

The LMH0395 has two differential serial data outputs, increasing flexibility and eliminating the need for a fanout buffer on the output in many applications. The outputs may be independently enabled and controlled. The output drivers offer programmable de-emphasis for up to 40 inches of FR4 trace losses. The LMH0395 supports two modes of operation. In pin mode, the LMH0395 operates with control pins to set its operating state. In SPI mode, an optional SPI serial interface can be used to access and configure multiple LMH0395 devices in a daisy-chain configuration.

The LMH0395 3-Gbps HD/SD SDI Dual Output Low Power Extended Reach Adaptive Cable Equalizer is designed to equalize data transmitted over cable (or any media with similar dispersive loss characteristics). The equalizer operates over a wide range of data rates from 125 Mbps to 2.97 Gbps and supports ST 424, ST 292, ST 344, ST 259, and DVB-ASI standards.

The LMH0395 device provides extended cable reach with improved immunity to crosstalk and ultra low power consumption. The equalizer includes active sensing circuitry that ensures robust performance and enhanced immunity to variations in the input signal launch amplitude. The LMH0395 offers power management to further reduce power consumption when no input signal is present.

The LMH0395 has two differential serial data outputs, increasing flexibility and eliminating the need for a fanout buffer on the output in many applications. The outputs may be independently enabled and controlled. The output drivers offer programmable de-emphasis for up to 40 inches of FR4 trace losses. The LMH0395 supports two modes of operation. In pin mode, the LMH0395 operates with control pins to set its operating state. In SPI mode, an optional SPI serial interface can be used to access and configure multiple LMH0395 devices in a daisy-chain configuration.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet LMH0395 3G HD/SD SDI Dual Output Low Power Extended Reach Adaptive Cable Equalizer datasheet (Rev. N) PDF | HTML 03 Jan 2017
Application note 3G-SDI Cable Equalizer Compatibility Guide – TI / MACOM 13 Sep 2017
Application note 3G-SDI Cable Equalizer Compatibility Guide – TI / Semtech 13 Sep 2017
Selection guide Broadcast and Professional Video Interface Solutions (Rev. E) 05 Apr 2017
Application note AN-1943 Understanding Serial Digital Video Bit Rates (Rev. A) 26 Apr 2013
Application note AN-2145 Power Considerations for SDI Products (Rev. B) 26 Apr 2013
Application note AN-2146 Power Design for SDI and Other Noise-Sensitive Devices (Rev. A) 26 Apr 2013
EVM User's guide SD395EVK - Evaluation Board for LMH0395 Cable Equalizer 27 Jan 2012
Application note High-Speed Board Layout Challenges in FPGA/SDI Sub-Systems 12 Nov 2009
Design guide Broadcast Video Owner's Manual 17 Nov 2006

Design und Entwicklung

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