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).
索取更多資訊
提供 LMH1208 編程指南和 IBIS-AMI 模型。立即索取
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 | LMH1208 12G UHD-SDI Dual Output Cable Driver datasheet (Rev. C) | PDF | HTML | 2020/5/12 | ||
| 應用說明 | LMH121x 12G SDI PCB Layout Guidelines | 2020/2/19 | ||||
| 應用說明 | LMH12xx MADI Compatibility Application Note | PDF | HTML | 2018/8/30 | |||
| 應用說明 | Simplifying 4K SDI Video Design with a Bidrectional I/O | 2017/10/31 | ||||
| 技術文章 | Three reasons why a bidirectional I/O will simplify your next 4K video design | PDF | HTML | 2017/9/6 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
LMH1297EVM — LMH1297 12-G 雙向 I/O 評估模組
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (RTV) | 32 | 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。