Overview
The LMH0302SQ/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 supporting ST 424 (3G), ST 292 (HD), ST 344, and ST 259 serial digital interfaces. It is capable of driving 75-Ω transmission lines at data rates up to 2.97 Gbps and also supports DVB-ASI at 270 Mbps. The LMH0302 operates from a single 3.3-V supply and is available in a 16-pin WQFN package, making it a versatile and efficient solution for various video transmission systems.
Key Specifications
| Parameter | Value |
|---|---|
| Data Rates | Up to 2.97 Gbps |
| Supported Standards | ST 424, ST 292, ST 344, ST 259, DVB-ASI |
| Input Impedance | 100-Ω Differential |
| Output Impedance | 75-Ω Single-Ended |
| Output Voltage Swing | Adjustable via RREF resistor |
| Supply Voltage | 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 |
| Package Size | 4.00 mm × 4.00 mm |
Key Features
- Selectable slew rate for compliance with ST 259, ST 292, and ST 424 standards
- Output driver power-down control via ENABLE pin
- Single 3.3-V supply operation
- Industrial temperature range: −40°C to 85°C
- Footprint compatible with the LMH0002SQ and replaces the Gennum GS2978
- Adjustable output voltage swing through a single external resistor (RREF)
Applications
- ST 424, ST 292, ST 344, and ST 259 serial digital interfaces
- Digital video routers and switches
- Distribution amplifiers
- Other serial digital video data transmission applications
Q & A
- What are the supported data rates for the LMH0302? The LMH0302 supports data rates up to 2.97 Gbps.
- Which standards does the LMH0302 comply with? The LMH0302 complies with ST 424, ST 292, ST 344, ST 259, and DVB-ASI standards.
- What is the input impedance of the LMH0302? The input impedance is 100-Ω differential.
- What is the output impedance of the LMH0302? The output impedance is 75-Ω single-ended.
- How is the output voltage swing adjusted? The output voltage swing is adjustable via a single external resistor (RREF) connected to the RREF pin and VCC.
- What is the supply voltage for the LMH0302? The supply voltage is 3.3 V.
- 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 temperature range is −40°C to 85°C.
- In what package is the LMH0302 available? The LMH0302 is available in a 16-pin WQFN package.
- Can the output driver be powered down? Yes, the output driver can be powered down through the ENABLE pin.
