The LMH0346MHX from Texas Instruments is a high-performance, adaptive cable equalizer designed to allow the reception of Serial Digital Interface (SDI) signals over a long distance through coaxial cable. This advanced piece of technology is particularly suitable for professional video and broadcast applications where signal integrity and high-quality transmission are critical.

Key Features

• SDI Support: This device supports a wide range of data rates including 270 Mbps, 1.483 Gbps, 1.485 Gbps, 2.967 Gbps, and 2.970 Gbps, making it compatible with SD-SDI, HD-SDI, and 3G-SDI.
• Equalization: Capable of equalizing up to 150 meters of cable at 2.97 Gbps, and up to 400 meters at 270 Mbps, the LMH0346MHX ensures clear signal transmission over long distances.
• Automatic Detection: The chip automatically detects the SDI rate without the need for external control, simplifying the design and implementation process.
• Low Power Consumption: With a typical power consumption of just 135 mW, this device is an energy-efficient solution for video applications.
• Output Driver: The integrated output driver features a programmable de-emphasis function, which compensates for the frequency-dependent losses of long PCB traces or other lossy media.

Applications

The LMH0346MHX is ideal for a variety of professional video applications, including:

• Video routers and switchers
• Video distribution amplifiers
• Video editing and production equipment
• Studio to transmitter links
• Camera control units

Package and Quality

This device comes in a compact 16-pin WQFN package, making it suitable for space-constrained applications. Additionally, it is characterized for operation from -40°C to +85°C, ensuring reliable performance across a wide range of temperatures. With Texas Instruments' commitment to quality, the LMH0346MHX is designed to meet the rigorous demands of professional video and broadcast environments.