Overview
The LMH0302SQX/NOPB is a 3-Gbps HD/SD SDI cable driver produced by Texas Instruments. This component is designed for use in serial digital video applications, specifically complying with SMPTE 424M, SMPTE 292M, SMPTE 344M, and SMPTE 259M standards. It is a high-speed cable driver that supports data rates up to 2.97 Gbps and is suitable for various video transmission systems.
Key Specifications
| Parameter | Value |
|---|---|
| Data Rates | Up to 2.97 Gbps |
| Input Impedance | 100-Ω Differential |
| Output Impedance | 75-Ω Single-Ended |
| Supply Voltage | Single 3.3 V |
| Power Consumption | Typically 125 mW in SD mode, 165 mW in HD mode |
| Temperature Range | −40°C to 85°C |
| Package Type | 16-pin WQFN |
| Output Slew Rate Control | Selectable for ST 259, ST 424, or ST 292 compliance |
| Output Driver Enable | Powered down via the ENABLE pin |
Key Features
- Supports ST 424 (3G), ST 292 (HD), and ST 259 (SD) serial digital interfaces
- Selectable slew rates for compliance with different standards
- Output driver power-down control via the ENABLE pin
- Single 3.3-V supply operation
- Industrial temperature range: −40°C to 85°C
- Adjustable output voltage swing through an external resistor (RREF)
- 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
- DVB-ASI at 270 Mbps
Q & A
- What are the supported data rates for the LMH0302? The LMH0302 supports data rates up to 2.97 Gbps.
- What are the input and output impedances of the LMH0302? The input impedance is 100-Ω differential, and the output impedance is 75-Ω single-ended.
- What is the supply voltage for the LMH0302? The LMH0302 operates on a single 3.3-V supply.
- How is the output slew rate controlled in the LMH0302? The output slew rate is controlled via the SD/HD pin, allowing for compliance with ST 259, ST 424, or ST 292 standards.
- Can the output driver of the LMH0302 be powered down? Yes, the output driver can be powered down via the ENABLE pin.
- What is the typical power consumption of the LMH0302? The typical power consumption is 125 mW in SD mode and 165 mW in HD mode.
- What is the temperature range for the LMH0302? The LMH0302 operates within a temperature range of −40°C to 85°C.
- In what package is the LMH0302 available? The LMH0302 is available in a 16-pin WQFN package.
- What standards does the LMH0302 comply with? The LMH0302 complies with SMPTE 424M, SMPTE 292M, SMPTE 344M, and SMPTE 259M standards.
- What are some typical applications of the LMH0302? Typical applications include digital video routers and switches, distribution amplifiers, and DVB-ASI at 270 Mbps.
