SN65LVDS105DR

Overview

The SN65LVDS105DR is a clock fanout buffer manufactured by Texas Instruments, designed to convert a single LVTTL input into four LVDS outputs. It operates within a supply voltage range of 2.97V to 3.63V and supports data rates up to 400Mbps. The device features a typical propagation delay of 2.2ns and offers high ESD protection exceeding 16kV. Packaged in an 8-pin SOIC (DR) format, it functions reliably across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Converts low-voltage TTL signals to four differential LVDS outputs for clock distribution
• Provides high electrostatic discharge protection for robust operation in noisy environments
• Ensures precise timing alignment with low pulse skew characteristics

Applications

• Clock distribution in wireless base stations
• Timing synchronization in network routers
• Point-to-point baseband data transmission on PCB traces or backplanes

Procurement Notes

Verify the specific suffix 'DR' corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the component meets RoHS compliance standards applicable to the target market. Ensure the ordering quantity aligns with the manufacturer's standard reel size to avoid partial reel handling issues during procurement.

Selection Notes

Select this component when a single LVTTL source must drive multiple LVDS loads with minimal skew. It is suitable for designs requiring 3.3V operation and high-speed clock buffering. Consider the SOIC package constraints regarding thermal dissipation and board space availability compared to other package options in the series.

Part Context

This part belongs to the SN65LVDS10x family, which includes variants like the SN65LVDS104. While the SN65LVDS104 accepts differential LVDS inputs, the SN65LVDS105 specifically accepts LVTTL inputs. Both share similar output capabilities and are intended for high-speed clock fanout applications requiring low power consumption and noise immunity.

Replacement Considerations

The SN65LVDS105PWG4 serves as a pin-compatible alternative in a TSSOP-16 package. Verify that the pinout differences between the SOIC and TSSOP packages do not require PCB layout modifications before substitution.