LMH0302 3Gbps HD/SD SDI Cable Driver is a chip designed for use in SMPTE 424M, SMPTE 292M, SMPTE 344M and SMPTE 259M serial digital video applications. It drives 75Ω transmission lines (Belden 1694A, Belden 8281 or equivalent) at data rates up to 2.97 Gbps. The chip provides two selectable slew rates for SMPTE 259M and SMPTE 424M / 292M compliance. The output driver can be powered down via the output driver enable pin. The chip is powered by a single 3.3V supply. Power consumption is typically 125 mW (SD mode) and 165 mW (HD mode). The chip is available in a 16-pin LLP package.
The LMH0302 is a 3 Gbps HD/SD SDI cable driver designed for SMPTE 424M, 292M, 344M, and 259M serial digital video applications. It operates from a single 3.3 V supply and supports both differential and single‑ended inputs.
Key features include selectable slew rates for SMPTE compliance, output driver power‑down control via the ENABLE pin, and a 16‑pin LLP package. Typical power consumption is 125 mW in SD mode and 165 mW in HD mode, with an operating temperature range of –40 °C to +85 °C.
| Maximum data rate | 2.97 Gbps |
|---|---|
| Power consumption (SD mode) | 125 mW |
| Power consumption (HD mode) | 165 mW |
| Supply voltage | 3.3 V ±5% |
| Operating temperature range | -40 °C to +85 °C |
| Package type | 16‑pin LLP |
| Output voltage swing | 800 mVpp into 75 Ω |
| Input type | Differential or single‑ended |
| Enable pin function | Disables output driver when low |
The LMH0302 supports data rates up to 2.97 Gbps.
The output driver is controlled by the ENABLE pin; pulling it low disables the driver, and it has an internal pull‑up.
It operates from a single 3.3 V supply with a tolerance of ±5 %.