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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技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LMH1208 12G UHD-SDI Dual Output Cable Driver datasheet (Rev. C) | PDF | HTML | 2020年 5月 12日 |
| Application note | LMH121x 12G SDI PCB Layout Guidelines | 2020年 2月 19日 | ||
| Application note | LMH12xx MADI Compatibility Application Note | PDF | HTML | 2018年 8月 30日 | |
| Application note | Simplifying 4K SDI Video Design with a Bidrectional I/O | 2017年 10月 31日 | ||
| Technical article | Three reasons why a bidirectional I/O will simplify your next 4K video design | PDF | HTML | 2017年 9月 6日 |
設計與開發
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LMH1297EVM — LMH1297 12-G 雙向 I/O 評估模組
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
TINA-TI — 基於 SPICE 的類比模擬程式
| 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
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
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。