SN65MLVD129DGGR

Overview

The SN65MLVD129DGGR is an LVDS interface integrated circuit manufactured by Texas Instruments. It functions as a dual 4-port M-LVDS repeater, featuring two LVTTL receivers and eight line drivers. The device supports data rates up to 250 Mb/s and clock frequencies up to 125 MHz. It operates on a single 3.3 V power supply with a voltage range of 3 V to 3.6 V. The component is housed in a 48-pin TSSOP package and is available in reel packaging.

Feature Summary

• Configured as a dual 4-port M-LVDS repeater with independent driver enable pins for flexible control
• Provides glitch-free operation during power-up and power-down events to ensure signal stability
• Features low output-to-output skew and high impedance bus pins when disabled or undervoltage conditions occur

Applications

• AdvancedTCA (ATCA) clock bus driving
• Clock distribution systems
• Data and clock relaying on backplanes and cables
• Cellular base stations
• Central office switches, network switches, and routers

Procurement Notes

Verify the specific ordering suffix DGGR confirms the reel packaging format rather than tube packaging. Ensure the design accommodates the 48-pin TSSOP footprint and thermal requirements. Confirm that the 3.3 V single-supply requirement aligns with the target system power architecture before finalizing procurement.

Selection Notes

Select this component when a dual-channel M-LVDS repeater configuration is required for clock or data distribution. It is suitable for applications needing LVTTL to M-LVDS conversion with controlled transition times. Consider the 250 Mb/s speed limit and 48-pin package size relative to board space constraints and signal integrity needs.

Part Context

This part belongs to the SN65MLVD series of LVDS interface ICs designed for high-speed digital communication. It complements other devices like the SN65MLVD128 by offering a dual-channel topology instead of a single-channel one. The series targets robust signal transmission in telecommunications and computing infrastructure environments.

Replacement Considerations

The SN65MLVD128DGG serves as a functional alternative if a single-channel 1:8 configuration suffices. Verify pin compatibility and electrical characteristics against the SN65MLVD129DGGR datasheet specifications before substitution.