PL133-97QI

Clock Buffers, Drivers Overview

The PL133-97QI is a low-power DC to 150MHz 1:9 fanout buffer IC manufactured by Microchip Technology (originally Micrel). It accepts a reference clock input and provides nine buffered LVCMOS outputs with an 8mA drive strength. The device operates within a supply voltage range of 1.62V to 3.63V, supporting full-speed operation up to 150MHz at 2.5V/3.3V and up to 67MHz at 1.8V. Key electrical characteristics include a maximum propagation delay of 9.2ns, output-to-output skew less than 250ps, and additive phase jitter of 60fs RMS. It is housed in a QFN-16 package and supports an industrial temperature range of -40°C to +85°C.

Clock Buffers, Drivers Feature Summary

• Provides 1:9 LVCMOS fanout buffering for clock signals from DC to 150MHz
• Features low additive phase jitter of 60fs RMS and output skew under 250ps
• Includes one free-running output (CLK8) that remains active when the Output Enable (OE) pin is pulled low
• Operates on a single supply voltage between 1.62V and 3.63V with 8mA output drive capability

Clock Buffers, Drivers Applications

• High-performance portable applications requiring low power consumption
• Small form factor systems needing precise clock distribution
• Industrial equipment operating within extended temperature ranges

Clock Buffers, Drivers Procurement Notes

Verify the specific ordering suffix 'I' confirms the industrial temperature grade (-40°C to +85°C). Confirm the package type matches the QFN-16L specification. Check if the required quantity necessitates the tape and reel variant (suffix '-R') or if individual units are available. Ensure compatibility with the 1.62V to 3.63V supply rail requirements for the target design.

Clock Buffers, Drivers Selection Notes

Select this component when a 1:9 fanout ratio is required with minimal signal degradation. The PL133-97QI is suitable for designs needing high-frequency operation up to 150MHz at standard voltages or up to 67MHz at lower 1.8V supplies. Consider the specific load capacitance limits (e.g., 5pF above 134MHz) when designing the PCB traces to maintain signal integrity.

Clock Buffers, Drivers Part Context

This component belongs to the PL133-97 series of low-power fanout buffers. The 'QI' designation specifically identifies the QFN-16 package option combined with the industrial temperature rating. The device was originally developed by Micrel, which has since been acquired by Microchip Technology, who now manages the product line and documentation.

Clock Buffers, Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source material.