LMH0394
- 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
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.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | LMH0394 3G HD/SD SDI Low Power Extended Reach Adaptive Cable Equalizer datasheet (Rev. M) | PDF | HTML | 2015/7/31 | ||
| 應用說明 | 3G-SDI Cable Equalizer Compatibility Guide – TI / MACOM | 2017/9/13 | ||||
| 應用說明 | 3G-SDI Cable Equalizer Compatibility Guide – TI / Semtech | 2017/9/13 | ||||
| 選擇指南 | Broadcast and Professional Video Interface Solutions (Rev. E) | PDF | HTML | 2017/4/5 | |||
| 應用說明 | AN-2145 Power Considerations for SDI Products (Rev. B) | 2013/4/26 | ||||
| 應用說明 | AN-2146 Power Design for SDI and Other Noise-Sensitive Devices (Rev. A) | 2013/4/26 | ||||
| 應用說明 | AN-1943 Understanding Serial Digital Video Bit Rates (Rev. A) | 2013/4/26 | ||||
| 應用說明 | High-Speed Board Layout Challenges in FPGA/SDI Sub-Systems | 2009/11/12 | ||||
| 設計指南 | Broadcast Video Owner's Manual | 2006/11/17 |
設計與開發
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SD394EVK — SD394EVK - 適用於 LMH0394 電纜等化器的評估板
The SD394EVK is an evaluation board designed to demonstrate the performance and capabilities of the LMH0394 3G HD/SD SDI Low Power Extended Reach Adaptive Cable Equalizer.
The board accepts 75Ω input signals conforming to the SMPTE 424M, SMPTE 292M, or SMPTE 259M standards. The LMH0394 will restore (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (RUM) | 16 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。