LMH1208
- Supports ST-2082-1 (12G), ST-2081-1 (6G), ST-424 (3G), ST-292 (HD), and ST-259 (SD)
- Compatible with DVB-ASI and AES10 (MADI)
- Dual differential output cable drivers
- On-chip 75-Ω termination and return loss compensation network
- Host-side equalized 100-Ω loop-back output
- Programmable slew rate control on 75-Ω outputs
- Programmable pre-emphasis and output amplitude on 75-Ω outputs
- Programmable de-emphasis and output amplitude on 100-Ω output
- Polarity inversion on 75-Ω and 100-Ω outputs
- Automatic power save in absence of input signal
- Power consumption: 25 mW (Typical)
- Power-down control through ENABLE pin
- Single 2.5-V supply
- Power consumption: 200 mW (typical)
- Programmable through pins, SPI, or SMBus interface
- –40°C to +85°C operating temperature range
- 5-mm × 5-mm, 32-pin WQFN package
LMH1208 device is a 12G UHD-SDI low power dual output cable driver. It supports SMPTE video rates up to 11.88 Gbps, enabling UHD video for 4K/8K applications. The additional equalized 100-Ω driver output on the host-side can be used for monitoring or signal distribution purposes.
The programmable PCB input equalizer provides high frequency boost to reduce inter symbol interference (ISI) induced by PCB board trace. The integrated 75-Ω termination and return loss network at both cable driver outputs facilitate overall system design in meeting stringent SMPTE return loss requirements.
Input Signal Detect determines the presence of a valid signal at the input of the cable driver. This sensing feature may be used to alert the user of a system fault and activate a Power Save Mode, reducing the power consumption of the cable driver. The LMH1208 provides selectable slew rates for data rates up to 11.88 Gbps. The output slew rate and amplitude can be controlled by pin, SPI, or SMBus control.
The LMH1208 is powered from a single 2.5-V supply. It is offered in a small footprint 5 mm × 5 mm 32-pin WQFN package. The LMH1208 is pin compatible with the LMH1228 (12G Dual Cable Driver with Integrated Reclocker).
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可提供 LMH1208 编程指南和 IBIS-AMI 模型。立即申请
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | LMH1208 12G UHD-SDI Dual Output Cable Driver 数据表 (Rev. C) | PDF | HTML | 2020-5-12 | ||
| 应用手册 | LMH121x 12G SDI PCB Layout Guidelines | 2020-2-19 | ||||
| 应用手册 | LMH12xx MADI Compatibility Application Note | PDF | HTML | 2018-8-30 | |||
| 应用手册 | Simplifying 4K SDI Video Design with a Bidrectional I/O | 2017-10-31 | ||||
| 技术文章 | Three reasons why a bidirectional I/O will simplify your next 4K video design | PDF | HTML | 2017-9-6 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
LMH1297EVM — LMH1297 12G 双向 I/O 评估模块
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| WQFN (RTV) | 32 | Ultra Librarian |
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