National Semiconductor LMH0384SQ

The LMH0384SQ/NOPB is a 3-Gbps HD/SD SDI Extended Reach and Configurable Adaptive Cable Equalizer produced by Texas Instruments. This device is designed to equalize data transmitted over cables, supporting a wide range of data rates from 125 Mbps to 2.97 Gbps. It complies with various SMPTE standards, including ST 424, ST 292, ST 344, and ST 259.

• Supports data rates from 125 Mbps to 2.97 Gbps
• Compliant with SMPTE standards ST 424, ST 292, ST 344, and ST 259
• Equalizes up to 140 meters of Belden 1694A cable at 2.97 Gbps, up to 200 meters at 1.485 Gbps, and up to 400 meters at 270 Mbps
• Active sensing features and design enhancements for longer cable equalization and lower output jitter
• Configurable pin mode and SPI modes for register access to all features
• Power-saving sleep mode with auto sleep control and programmable output common-mode voltage and swing
• DC restoration to handle pathological data conditions
• Internally terminated 100-Ω LVDS outputs and programmable launch amplitude optimization in SPI mode
• Single 3.3-V supply operation and footprint compatibility with LMH0344 and legacy SDI equalizers in pin mode

The LMH0384SQ/NOPB is primarily used in digital interface applications, particularly in the transmission and reception of HD/SD SDI signals. It is suitable for various professional video equipment, broadcast systems, and other applications requiring high-speed data transmission over long cable lengths.

1. What is the primary function of the LMH0384SQ/NOPB?

   The LMH0384SQ/NOPB is a 3-Gbps HD/SD SDI Extended Reach and Configurable Adaptive Cable Equalizer designed to equalize data transmitted over cables.

2. What data rates does the LMH0384SQ/NOPB support?

   The device supports data rates from 125 Mbps to 2.97 Gbps.

3. Which SMPTE standards does the LMH0384SQ/NOPB comply with?

   The device complies with SMPTE standards ST 424, ST 292, ST 344, and ST 259.

4. What is the maximum cable length the LMH0384SQ/NOPB can equalize?

   The device can equalize up to 140 meters of Belden 1694A cable at 2.97 Gbps, up to 200 meters at 1.485 Gbps, and up to 400 meters at 270 Mbps.

5. Does the LMH0384SQ/NOPB have power-saving features?

   Yes, the device includes a power-saving sleep mode with auto sleep control.

6. What is the operating temperature range of the LMH0384SQ/NOPB?

   The device operates within a temperature range of -40°C to +85°C.

7. Is the LMH0384SQ/NOPB RoHS compliant?

   Yes, the device is RoHS compliant.

8. What package type does the LMH0384SQ/NOPB come in?

   The device comes in a 16-WQFN Exposed Pad package.

9. Does the LMH0384SQ/NOPB support SPI mode?

   Yes, the device supports both pin mode and SPI mode for register access to its features.

10. What are some key enhancements of the LMH0384SQ/NOPB?

    The device includes active sensing features, longer cable equalization, lower output jitter, and programmable output common-mode voltage and swing.