1 Features
1• Supports ST 424 (3G), 292 (HD), and 259 (SD)
• Data Rates up to 2.97 Gbps
• Supports DVB-ASI at 270 Mbps
• 100-Ω Differential Input
• 75-Ω Single-Ended Outputs
• Selectable Slew Rate
• Output Driver Power-Down Control
• Single 3.3-V Supply Operation
• Industrial Temperature Range: −40°C to 85°C
• Typical Power Consumption: 125 mW in SD Mode
and 165 mW in HD Mode
• 16-Pin WQFN Package
• Footprint Compatible With the LMH0002SQ
• Replaces the Gennum GS2978

2 Applications
• ST 424, ST 292, ST 344, and ST 259 Serial
Digital Interfaces
• Digital Video Routers and Switches
• Distribution Amplifiers

3 Description
The LMH0302 3-Gbps HD/SD SDI cable driver is
designed for use in ST 424, ST 292, ST 344, and ST
259 serial digital video applications. The LMH0302
drives 75-Ω transmission lines (Belden 1694A,
Belden 8281, or equivalent) at data rates up to
2.97 Gbps.
The LMH0302 provides two selectable slew rates for
ST 259 and ST 424 or 292 compliance. The output
driver may be powered down through the output
driver enable pin.
The LMH0302 is powered from a single 3.3-V supply.
Power consumption is typically 125 mW in SD mode
and 165 mW in HD mode. The LMH0302 is available
in a 16-pin WQFN package.