LMH0395
- 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.
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 | LMH0395 3G HD/SD SDI Dual Output Low Power Extended Reach Adaptive Cable Equalizer datasheet (Rev. N) | PDF | HTML | 2017/1/3 | ||
| 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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TIDA-00253 — 適用於串列數位介面的低功耗 1:4 分散式放大器參考設計
TIDA-00253 參考設計在功能上為 1:4 SDI 分配放大器，具備 USB 介面，可連接至主機電腦和圖形使用者介面 (GUI) 程式，該程式可視需要變更電路板上裝置的配置，並允許監控 SDI 視訊眼圖。無需使用影片分析儀或高頻寬示波器即可完成多工和眼圖量測，這在常規影片製作環境中並不實用。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (RTW) | 24 | 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。