MAX2538ETI-TG097

Overview

The MAX2538ETI-TG097 is a quadruple-mode PCS/Cellular/GPS Low Noise Amplifier (LNA) and mixer IC from the Maxim Integrated MAX25 series. Designed for CDMA, GSM, and TDMA applications in cellular and PCS bands, it includes a dedicated GPS LNA/mixer signal path for E911 and traveler assistance. The device supports dual IF ports for cellular/PCS signals and a separate port for GPS. It operates within a frequency range of 869MHz to 1.99GHz, featuring an LNA noise figure of 0.9dB. The component is housed in a 28-pin TQFN package measuring 5mm x 5mm with a height of 0.80mm, suitable for surface mount assembly.

Feature Summary

• Integrates dual-mode LNA/mixer functionality for cellular and PCS bands alongside a dedicated GPS signal path
• Supports multiple RF standards including CDMA, GSM, and TDMA for versatile wireless communication applications
• Features independent IF output routing to optimize dynamic range and current consumption

Applications

• E911 location services in mobile handsets
• Traveler assistance systems requiring GPS integration
• CDMA and GSM cellular base stations or mobile units
• PCS band communication devices

Procurement Notes

Verify the specific suffix TG097 against the manufacturer's official datasheet to confirm tape-and-reel packaging specifications and pinout compatibility. Ensure the procurement source provides valid traceability documentation for Analog Devices Inc./Maxim Integrated components. Cross-reference the 28-WFQFN exposed pad package dimensions with your PCB footprint design to guarantee mechanical fit and thermal performance requirements are met before ordering.

Selection Notes

Select this component when designing systems requiring integrated amplification and mixing for multiple wireless standards in a compact form factor. The inclusion of a dedicated GPS path makes it suitable for devices needing location capabilities without additional discrete components. Consider the 0.9dB noise figure for sensitivity-critical front-end designs. Evaluate the dual IF port architecture if flexible filtering strategies are required for different signal bands within the same hardware platform.

Part Context

This part belongs to the MAX25 series of single-chip multi-band LNA/mixers optimized for wireless communications. The family shares common architectural features but varies in specific mode support and pin configurations. The MAX2538 variant specifically targets quadruple-mode operation, distinguishing itself by combining cellular, PCS, and GPS functionalities into one integrated circuit, reducing board space compared to discrete solutions.

Replacement Considerations

Consult the official MAX25 series datasheet for direct pin-compatible substitutes such as MAX2530, MAX2531, MAX2537, MAX2351, MAX2354, MAX2358, or MAX2359. Verify that alternative parts support the required PCS, Cellular, and GPS modes simultaneously. Ensure interface compatibility and electrical parameters match the original design specifications before substitution.