8T3910BNLGI

Clock Buffers, Drivers Overview

The IDT8T3910I is a high-performance clock fanout buffer manufactured by Integrated Device Technology, Inc. It accepts differential or crystal inputs and distributes the signal to ten differential outputs plus one single-ended reference output. The device supports LVPECL, LVDS, HCSL, and LVCMOS/LVTTL interface levels. Maximum operating frequencies are 500 MHz for differential outputs, 250 MHz for HCSL, and 200 MHz for LVCMOS. It operates on a 3.3V core supply with 3.3V or 2.5V output supplies, featuring low additive phase jitter of 0.22 ps typical.

Clock Buffers, Drivers Feature Summary

• Two differential input pairs (LVPECL, LVDS, HCSL) and crystal oscillator interface
• Ten differential outputs configurable as LVPECL, LVDS, or HCSL; one LVCMOS reference output
• Low output skew of 32 ps typical and part-to-part skew of 200 ps typical
• Additive RMS phase jitter of 0.22 ps typical at 156.25 MHz

Clock Buffers, Drivers Applications

• High-frequency clock distribution in telecommunications equipment
• Fanout buffers for data converters and FPGA systems
• Test and measurement instrumentation requiring low jitter

Clock Buffers, Drivers Procurement Notes

Verify the manufacturer designation, as the component was originally produced by Integrated Device Technology, Inc., which has undergone corporate acquisitions. Confirm that the specific ordering suffix matches the required package and temperature range specifications from the official datasheet.

Clock Buffers, Drivers Selection Notes

Select this component when a 3:11 ratio is required with mixed voltage domains. Ensure the output load termination matches the selected interface level (e.g., 50 ohms to VDDO-2V for LVPECL). Note that the LVCMOS output should be disabled if operating above 200 MHz.

Clock Buffers, Drivers Part Context

This device belongs to the IDT8T3910 family of clock fanout buffers. It is functionally similar to the Renesas 8T39S10NLGI but differs in maximum frequency (500 MHz vs 2 GHz) and output configuration (ten differential outputs versus eleven).

Clock Buffers, Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.