MAX9988ETP

Overview

The MAX9988ETP+ is a radio frequency buffer and splitter designed for local oscillator signal distribution. It operates within a frequency range of 1.5 GHz to 2.2 GHz, supporting input power levels from +14 dBm to +20 dBm. The device provides output isolation of 40 dB and maintains a gain variation of 1 dB across the operating band. It requires a single 5 V supply voltage and draws a typical current of 229 mA. The component is housed in a TQFN-EP-20 package with an exposed pad for thermal management. It functions as a general-purpose RF amplifier suitable for wireless communication systems requiring precise LO buffering.

Feature Summary

• Provides buffered and split outputs for local oscillator signals with minimal amplitude variation
• Ensures high isolation between ports to prevent signal interference
• Operates reliably over extended industrial temperature ranges

Applications

• Local oscillator distribution in wireless transceivers
• Signal splitting in RF front-end modules
• Test and measurement equipment requiring stable RF sources

Procurement Notes

Verify component authenticity through authorized distributors due to obsolete status. Confirm RoHS compliance documentation matches specific manufacturing lot requirements. Check for alternative lead times as availability may be limited. Ensure packaging integrity upon receipt to prevent damage to the exposed thermal pad. Validate datasheet revisions against design specifications before final integration.

Selection Notes

Select this component when precise LO buffering is required within the 1.5 GHz to 2.2 GHz spectrum. Consider the 5 V supply requirement and 229 mA current draw for power budget calculations. The TQFN-EP-20 package necessitates adequate PCB thermal relief for heat dissipation. Evaluate isolation needs against system interference constraints. Compare performance metrics with newer generation buffers if long-term supply assurance is critical.

Part Context

This part belongs to the Maxim Integrated RF amplifier family, specifically engineered for local oscillator applications. It complements other buffer and splitter devices by offering balanced performance in a compact surface-mount form factor. The series targets designers needing reliable signal distribution without significant insertion loss or phase noise degradation in wireless infrastructure.

Replacement Considerations

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