MAX9990ETP+

Overview

The MAX9990ETP+ is a local oscillator buffer designed for wireless infrastructure applications. It operates within a frequency range of 700 MHz to 1.1 GHz and requires a supply voltage between 4.75 V and 5.25 V. The device draws 110 mA of operating current and dissipates up to 1.667 W of power. It provides output levels from +14 dBm to +20 dBm with +/-1 dB variation. Packaged in a QFN-EP-20 format, it supports surface mount installation and functions reliably across temperatures from -40°C to +85°C.

Feature Summary

• Provides robust reverse isolation to maintain signal integrity in demanding environments
• Delivers stable local oscillator buffering with controlled amplitude variation
• Supports high-frequency operation suitable for modern wireless communication standards

Applications

• Wireless infrastructure systems
• Communication systems requiring signal integrity maintenance
• Local oscillator distribution networks

Procurement Notes

Verify component authenticity through authorized channels due to limited availability status. Confirm package marking matches the specified QFN-EP-20 configuration. Ensure supply chain documentation aligns with Analog Devices quality standards. Check for obsolescence notices or lifecycle changes before finalizing procurement plans. Validate electrical specifications against current design requirements.

Selection Notes

Select this component when designing circuits requiring precise LO buffering within the 700 MHz to 1.1 GHz range. Consider the 110 mA current consumption and thermal dissipation capabilities for power budgeting. Evaluate the QFN-EP-20 footprint compatibility with existing PCB layouts. Compare performance metrics against alternative buffers if wider frequency ranges are needed.

Part Context

Part of the MAX9990 series focusing on RF wireless miscellaneous components. Designed by Analog Devices/Maxim Integrated for specialized radio frequency applications. Shares family characteristics with other LO buffers but offers specific gain and isolation properties tailored for infrastructure use cases.

Replacement Considerations

Public confirmed substitute part numbers: None identified in available documentation.