SN65MLVD128DGGR

Overview

The SN65MLVD128DGGR is an LVTTL to M-LVDS converter and repeater manufactured by Texas Instruments. It features one LVTTL receiver and eight M-LVDS line drivers, configured as an 8-port M-LVDS repeater. The device supports data rates up to 250 Mbps and clock frequencies up to 125 MHz. It operates on a single 3.3 V supply voltage within a temperature range of -40°C to +85°C. Packaged in a 64-pin TSSOP (DGGR suffix), it meets the M-LVDS standard (TIA/EIA-899) for low-voltage differential signaling on 30-55 Ω lines.

Feature Summary

• Configured as an 8-port M-LVDS repeater with one LVTTL receiver and eight independent line drivers.
• Optimized for high-speed operation supporting up to 250 Mbps data rates and 125 MHz clock frequencies.
• Features controlled driver output transition times to enhance signal quality and reduce jitter.
• Provides glitch-free power-up and power-down protection to ensure stable signal transmission.

Applications

• AdvancedTCA (ATCA) clock bus driving for system stability.
• Clock distribution across various electronic systems.
• Data and clock re-driving on backplanes and cables.
• Cellular base station synchronization and data transfer.
• Central office switches, network switches, and routers.

Procurement Notes

Verify the specific ordering suffix DGGR confirms the TSSOP-64 package and reel packaging configuration. Ensure the component matches the required M-LVDS standard compliance and LVTTL input compatibility for your interface design. Cross-reference the manufacturer part number with official distributor catalogs to confirm current availability and lead times before finalizing procurement plans.

Selection Notes

Select this component when an LVTTL source needs to drive multiple M-LVDS loads. It is suitable for applications requiring high fan-out with minimal skew. Consider the 3.3 V supply requirement and the 64-pin package size during PCB layout. Verify that the target application does not require half-duplex functionality, which is handled by other models in the series.

Part Context

This device belongs to the SN65MLVD family of M-LVDS transceivers and converters from Texas Instruments. It complements parts like the SN65MLVD129, which offers dual 4-port configurations. The family addresses the need for reliable high-speed serial communication interfaces in telecommunications and computing infrastructure.

Replacement Considerations

The SN65MLVD129 serves as a functional alternative for dual 4-port applications. For pin-compatible replacements, verify datasheet specifications regarding driver count and input type. No direct cross-model substitutes are confirmed for this exact 8-port configuration without circuit redesign.