MAX9491ETP045+

Clock Generators, PLLs, Frequency Synthesizers Overview

The MAX9491ETP045+ is a factory-programmable, single-phase PLL clock generator manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of 3V to 3.6V and supports a maximum output frequency of 200MHz. The device accepts LVCMOS or crystal inputs and provides a single LVCMOS output. Packaged in a 20-WQFN exposed pad (5x5mm) with an exposed thermal pad, it is designed for surface-mount installation. The component functions as a dedicated clock source with a 1:1 input-to-output ratio and lacks differential signaling capabilities.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Factory-programmable single PLL clock generator architecture
• Maximum operating frequency of 200MHz with LVCMOS output
• Compact 20-pin WQFN package with exposed pad for thermal management
• Operates on a single 3V to 3.6V power supply

Clock Generators, PLLs, Frequency Synthesizers Applications

• General-purpose clock generation for digital systems
• Timing reference sources for embedded processors
• Clock distribution in compact electronic assemblies

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix '045' against official documentation to confirm the programmed output frequency, as this variant defines the fixed division/multiplication ratios. Confirm RoHS3 compliance status and check for 'Not Recommended for New Designs' status before procurement planning. Ensure the 20-TQFN footprint matches the PCB layout requirements.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a fixed-frequency, low-pin-count clock solution is required without external programming hardware. The 200MHz limit and LVCMOS output drive capability define the upper bounds of application speed. Consider the 20-WQFN package size constraints and thermal dissipation needs associated with the exposed pad design during board layout.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the MAX9491 series of programmable clock generators. Other variants in the family, such as MAX9491ETP010+ and MAX9491ETP095+, differ primarily in their factory-programmed output frequencies or specific timing configurations while sharing the same core PLL architecture and package type.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct pin-compatible replacements within the same series include MAX9491ETP010+ and MAX9491ETP095+. Verify that the alternative part's factory-programmed frequency matches the system requirement, as these numbers denote specific internal configuration settings.