The LMH0394 3-Gbps HD/SD SDI 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 LMH0394 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 output driver offers programmable de-emphasis for up to 40” of FR4 trace losses. The LMH0394 includes power management to further reduce power consumption when no input signal is present.

The LMH0394 supports two modes of operation. In pin mode, the LMH0394 operates with control pins to set its operating state, and is footprint compatible with the LMH0384, LMH0344, and legacy SDI equalizers. In SPI mode, an optional SPI serial interface can be used to access and configure multiple LMH0394 devices in a daisy-chain configuration. This allows users to program the output common-mode voltage and swing, output de-emphasis level, input launch amplitude, and power management settings. Users may also access a cable length indicator and all pin mode features.

• 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: 115 mW (Normal Operation)
• 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
• 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
• 16-pin WQFN Package
• Industrial Temperature Range: ?40°C to +85°C
• Footprint Compatible with the LMH0384 and also the LMH0344, LMH0044, and LMH0074 in Pin Mode

• Function
• Equalizer
• Power consumption (mW)
• 115
• Data rate (Max) (Gbps)
• 2.97
• Control interface
• Pin, SPI
• Operating temperature range (C)
• -40 to 85

LMH0394的完整型号有：LMH0394SQ/NOPB、LMH0394SQE/NOPB、LMH0394SQX/NOPB，以下是这些产品的关键参数及官网采购报价：

LMH0394SQ/NOPB，工作温度：-40 to 85，封装：WQFN (RUM)-16，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：SN，TI官网LMH0394SQ/NOPB的批量USD价格：15.948（1000+）

LMH0394SQE/NOPB，工作温度：-40 to 85，封装：WQFN (RUM)-16，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：SN，TI官网LMH0394SQE/NOPB的批量USD价格：15.948（1000+）

LMH0394SQX/NOPB，工作温度：-40 to 85，封装：WQFN (RUM)-16，包装数量MPQ：4500个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：SN，TI官网LMH0394SQX/NOPB的批量USD价格：13.948（1000+）

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The board accepts 75Ω input signals conforming to the SMPTE 424M, SMPTE 292M, or SMPTE 259M standards. The LMH0394 will restore (...)

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