8SLVD1208NBGI

Clock Buffers, Drivers Overview

The 8SLVD1208NBGI is a high-performance differential LVPECL fanout buffer manufactured by Renesas Electronics. It features eight low-skew, low additive jitter LVPECL output pairs and two selectable differential clock input pairs. The device supports multiple differential input levels including LVDS, LVPECL, and CML, with a maximum input clock frequency of 2 GHz. Key electrical parameters include a typical output skew of 28 ps, a maximum propagation delay of 410 ps, and a maximum RMS additive phase jitter of 54.1 fs at 156.25 MHz. It operates on a single supply voltage ranging from 2.375 V to 2.625 V.

Clock Buffers, Drivers Feature Summary

• Eight low-skew, low additive jitter LVPECL output pairs
• Two selectable differential clock input pairs (LVDS, LVPECL, CML)
• Maximum input clock frequency of 2 GHz
• Typical output skew of 28 ps and max propagation delay of 410 ps

Clock Buffers, Drivers Applications

• Fanout of high-frequency, very-low additive phase-noise clock signals
• Clock distribution applications demanding well-defined performance and repeatability
• Data signal buffering in high-speed digital systems

Clock Buffers, Drivers Procurement Notes

Verify the specific suffix 'NBGI' against official Renesas documentation to confirm package type and tape/reel specifications. Confirm current production status as timing product lines may undergo transitions or obsolescence notices. Ensure compatibility with existing board layouts for the required package footprint before procurement.

Clock Buffers, Drivers Selection Notes

Select this component when low additive phase noise and precise output skew are critical for clock distribution networks. Verify that the system power supply can maintain the required 2.375 V to 2.625 V range. Ensure the input source matches one of the supported differential formats: LVDS, LVPECL, or CML. Consider thermal dissipation requirements given the maximum device current consumption of 141 mA.

Clock Buffers, Drivers Part Context

This part belongs to the 8SLVD series of differential fanout buffers. Renesas has acquired SiTime's timing product portfolio, with full transition expected by the end of 2026. While datasheets remain available via Renesas, new designs and support inquiries are directed toward SiTime. This component represents the legacy Renesas implementation of high-performance LVPECL buffering.

Clock Buffers, Drivers Replacement Considerations

The document lists 8SLVD2104NBGI8 as a potential replacement. Verify pinout compatibility and electrical parameter alignment, specifically checking if the 1:4 configuration of the substitute meets the 1:8 fanout requirement of the original part.