NATIONAL SEMICONDUCTOR LMH0302 3Gbps HD SD SDI Cable Driver Manual User Guide
Summary
The LMH0302 is a robust 3Gbps cable driver designed for critical high-speed HD/SD SDI video transmission up to 2.97 Gbps. It ensures reliable signal integrity while maintaining compliance with key SMPTE professional standards (including 424M, 292M, and 259M). This manual details the electrical specifications, operational parameters, selectable slew rates, and low-power performance of the device. Ideal for video networking specialists, broadcasters, and system designers requiring dependable interfaces for digital routers, distribution amplifiers, and switches in industrial environments.
Page 1 Text Content
/S I C le riv
August 1, 2008
LMH0302 3Gbps HD/SD SDI Cable Driver General Description Features The LMH0302 3Gbps HD/SD SDI Cable Driver is designed SMPTE 424M, SMPTE 292M, SMPTE 344M, and SMPTE for use in SMPTE 424M, SMPTE 292M, SMPTE 344M, and 259M compliant SMPTE 259M serial digital video applications. The LMH0302 Data rates to 2.97 Gbps drives 75Ω transmission lines (Belden 1694A, Belden 8281,
Supports DVB-ASI at 270 Mbps
or equivalent) at data rates up to 2.97 Gbps.
Differential input
The LMH0302 provides two selectable slew rates for SMPTE
75Ω differential output
259M and SMPTE 424M / 292M compliance. The output driv-
er may be powered down via the output driver enable pin. Selectable slew rate The LMH0302 is powered from a single 3.3V supply. Power Output driver power down control
consumption is typically 125 m W in SD mode and 165 m W in Single 3.3V supply operation HD mode. The LMH0302 is available in a 16-pin LLP pack-
Industrial temperature range: −40°C to +85°C
Typical power consumption: 125 m W in SD mode and 165 m W in HD mode 16–pin LLP package Footprint compatible with the LMH0002SQ Replaces the Gennum GS2978
Applications SMPTE 424M, SMPTE 292M, SMPTE 344M, and SMPTE 259M serial digital interfaces Digital video routers and switches Distribution amplifiers
Typical Application
© 2008 National Semiconductor Corporation www.national.com
Page Summary Contents For NATIONAL SEMICONDUCTOR LMH0302 3Gbps HD SD SDI Cable Driver Manual User Guide
Manual Details
| Brand | National |
|---|---|
| Pages | 8 |
| File Size | 185.15 KB |
| Published | June 17, 2026 |
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