8P34S1212NLGI

Clock Buffers, Drivers Overview

The Renesas 8P34S1212NLGI is a high-performance differential LVDS fanout buffer designed for distributing 1PPS signals and high-frequency clock data. It features two selectable differential inputs and twelve low-skew outputs, supporting maximum input frequencies up to 1.5 GHz. The device operates on a single supply voltage ranging from 1.71 V to 2.7 V, accommodating both 1.8V and 2.5V logic levels. Key electrical specifications include a maximum propagation delay of 450 ps and typical output skew of 10 ps. It is housed in a 40-lead VFQFPN package with dimensions of 6.0 x 6.0 mm and operates within an ambient temperature range of -40°C to +85°C.

Clock Buffers, Drivers Feature Summary

• Twelve low-skew, low additive jitter LVDS output pairs
• Two selectable differential clock input pairs accepting LVDS or CML levels
• Maximum input frequency of 1.5 GHz with typical output skew of 10 ps
• Integrated bias voltage reference for easy interfacing of single-ended signals

Clock Buffers, Drivers Applications

• Fanout of 1PPS (One Pulse Per Second) signals
• Distribution of high-frequency, very low additive phase-noise clocks
• PCI Express Gen 1 through Gen 5 clock distribution

Clock Buffers, Drivers Procurement Notes

Verify the specific suffix 'NLGI' against the manufacturer's current datasheet to confirm pinout compatibility and RoHS status. Check moisture sensitivity level (MSL) requirements for storage and handling prior to assembly. Confirm lead times and factory packaging quantities directly with authorized distributors as these parameters are subject to change based on production schedules.

Clock Buffers, Drivers Selection Notes

Select this component when a single input requires expansion into twelve matched LVDS outputs with minimal skew. Ensure the system power supply supports the 1.71 V to 2.7 V operating range. Verify that the input signal format matches the supported LVDS or CML standards. Consider the 40-lead VFQFPN package constraints for PCB layout and thermal management compared to other fanout buffers in the series.

Clock Buffers, Drivers Part Context

This part belongs to the 8P34S1212I series of differential fanout buffers. It shares architectural similarities with other devices in the family but is distinct in its 1:12 configuration. Unlike dual-channel variants such as the 8P34S2102, this model provides a single high-density output path optimized for uniform signal distribution across multiple receivers.

Clock Buffers, Drivers Replacement Considerations

Direct functional substitutes within the same series include parts with different input/output ratios, such as the 8P34S1204 (2:4 ratio). Cross-referencing pinouts is essential when replacing with non-identical models from the Renesas clock buffer portfolio.