PI49FCT3802LEX

Clock Buffers, Drivers Overview

The PI49FCT3802LEX is a 3.3V high-speed, low-noise non-inverting clock buffer manufactured by Diodes Incorporated. It features a 1:5 fanout configuration with five outputs driven by a single input. The device supports input frequencies up to 156 MHz and operates within a supply voltage range of 3.0V to 3.6V. Key electrical parameters include a maximum propagation delay of 2.5ns, output-to-output skew of less than 250ps, and duty cycle distortion under 250ps. It utilizes advanced CMOS technology for low jitter performance and includes multiple VDD and GND pins to minimize noise.

Clock Buffers, Drivers Feature Summary

• High-frequency operation supporting input clocks up to 156 MHz
• Low-skew performance with output-to-output skew <250ps and duty cycle distortion <250ps
• 5V tolerant input capability allowing compatibility with various logic levels
• Multiple VDD and GND pins integrated for enhanced noise reduction

Clock Buffers, Drivers Applications

• Synchronous networking systems requiring tight skew control
• High-speed clock distribution in data communication equipment
• Address distribution where point-to-point transmission line driving is required

Clock Buffers, Drivers Procurement Notes

Verify the ordering suffix 'LEX' corresponds to the Pb-free and Green 16-pin TSSOP package as defined in the datasheet. Confirm that the industrial temperature range (-40°C to +85°C) meets system requirements, as commercial grades are also available. Ensure input signal levels remain within the specified 0.8V to 2.0V thresholds for reliable switching.

Clock Buffers, Drivers Selection Notes

Select the PI49FCT3802LEX when a 1:5 fanout is required rather than the 1:7 variant (PI49FCT3803). Consider the 16-pin TSSOP package for surface-mount applications requiring a compact footprint. Verify that the load capacitance on each output does not exceed 50pF to maintain signal integrity and meet timing specifications.

Clock Buffers, Drivers Part Context

This component belongs to the PI49FCT380x series of 3.3V compatible clock buffers designed for networking applications. It shares architectural similarities with the PI49FCT3803 but differs in output count. The series targets synchronous systems needing low-jitter clock distribution, utilizing Pericom's advanced submicron CMOS technology for industry-leading speed grades.

Clock Buffers, Drivers Replacement Considerations

The PI49FCT3803 serves as a functional alternative if a 1:7 fanout is acceptable instead of 1:5. Other members of the PI49FCT380x family may be considered for similar low-skew requirements, provided the pinout and output configuration match the design constraints.