12G UHD-SDI dual output cable driver with built-in reclocker 'LMH1228'
The LMH1228 device is a low-power 12G UHD-SDI dual-output cable driver with an integrated reclocker. It supports SMPTE video up to 11.88Gbps and is compatible with UHD video for 4K/8K applications. The extensive clock and data recovery (CDR) circuitry allows the on-chip reclocker to automatically detect and lock onto all SMPTE video rates up to 11.88Gbps. There is an additional reclocked 100Ω driver output on the host side for monitoring and signal distribution. Furthermore, the reclocker attenuates high-frequency jitter and fully reconstructs the data using a clean, low-jitter clock. Additionally, a loop filter is incorporated, eliminating the need for an input reference clock. The LMH1228 features an internal eye opening monitor, CDR lock indicator, input signal detection, and programmable pins for hardware interrupts, supporting system diagnostics and board initialization. It operates with a single 2.5V power supply. The package is a compact 5mm square 32-pin WQFN. *For more details, please contact us.*
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basic information
**Features** - Supports ST-2082-1 (12G), ST-2081-1 (6G), ST-424 (3G), ST-292 (HD), ST-259 (SD) - Compatible with DVB-ASI and AES10 (MADI) - Built-in reclocker locks to SMPTE rates of 11.88Gbps, 5.94Gbps, 2.97Gbps, 1.485Gbps, or Divide-by-1.001 sub-rate, 270Mbps - Built-in Eye Opening Monitor (EOM) - Dual differential output cable driver - On-chip 75Ω termination and return loss compensation network - Adaptive PCB input equalizer - Reclocked 100Ω loopback output - Automatic slew rate control at 75Ω output - Automatic pre-emphasis and output amplitude at 75Ω output - Programmable de-emphasis and output amplitude at 100Ω output - Automatic power-saving feature - Polarity inversion at 75Ω and 100Ω outputs - Power down control via ENABLE pin - Single 2.5V power supply: power consumption 305mW (typical) *For more details, please contact us.*
Applications/Examples of results
【Usage】 ■SMPTE compatible serial digital interface, UHDTV/4K/8K/HDTV/SDTV video, broadcast video routers/switchers/distribution amplifiers, monitors, digital video processing/editing, etc. *For more details, please contact us.
Company information
Texas Instruments (Headquarters: Dallas, Texas, USA; Chairman, President, and CEO: Rich Templeton; Abbreviation: TI) supports customers in developing new electronic devices that make the world "more convenient, healthier, safer, environmentally friendly, and enjoyable," and works together to solve challenges. TI has manufacturing, design, and sales locations in over 30 countries worldwide and continues to pursue innovation. TI's analog ICs and embedded processing support everyday life from behind the scenes in a society overflowing with digital devices. The company is actively investing in products and technologies for markets that will become increasingly important in the future, such as the environment, energy, healthcare, medical devices, and security. Technical Inquiry Contact TI Japan Product Information Center 【http://www.tij.co.jp/pic/】
