SN65MLVD129DGG

Overview

The SN65MLVD129DGG is an LVTTL to M-LVDS converter and repeater manufactured by Texas Instruments. It features two LVTTL receivers and eight line drivers, configured as dual four-port M-LVDS repeaters. 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 and meets the M-LVDS standard (TIA/EIA-899). The output drivers are optimized for low skew, with output-to-output skew of 160 ps and part-to-part skew of 800 ps. The package is a 56-pin TSSOP.

Feature Summary

• Dual four-port M-LVDS repeater configuration with independent driver enable pins
• Glitch-free power-up and power-down operation ensures signal stability
• Controlled driver output transition times optimize signal quality
• High impedance bus pins when disabled or supply voltage is below 1.5 V

Applications

• AdvancedTCA (ATCA) clock bus driving
• Clock distribution in various systems
• Data and clock relaying on backplanes and cables
• Cellular base stations requiring high-speed data transmission
• Central office switches, network switches, and routers

Procurement Notes

Verify the specific ordering suffix DGG corresponds to the 56-pin TSSOP package and commercial temperature range. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets before procurement. Ensure the component matches the required pinout and electrical specifications for the target application design.

Selection Notes

Select this component when a dual four-port M-LVDS repeater function is required. It is suitable for applications needing LVTTL to M-LVDS conversion with high data rates up to 250 Mbps. Consider the 56-pin TSSOP package constraints and single 3.3 V supply requirement during circuit design. Verify that the low skew characteristics meet the system timing requirements.

Part Context

This part belongs to the SN65MLVD series of M-LVDS interface devices from Texas Instruments. It shares functional similarities with the SN65MLVD128 but differs in receiver configuration. The series is designed for high-speed serial communication interfaces, providing reliable signal conversion and re-driving capabilities for digital systems.

Replacement Considerations

The SN65MLVD128DGG is a related device within the same family, offering a similar M-LVDS interface but with a different port configuration (single eight-port vs. dual four-port). Verify pin compatibility and functional equivalence before substitution.