MAX2538EGI-B50113

Overview

The MAX2538 is a quadruple-mode PCS/Cellular/GPS Low Noise Amplifier (LNA) and mixer IC designed for CDMA, GSM, and TDMA applications. It integrates signal paths for cellular, PCS, and GPS bands within a single package. The device operates in the frequency range of 869MHz to 1.99GHz. Key electrical parameters include an LNA noise figure of 0.9dB for cellular, 1.2dB for PCS, and 1.0dB for GPS. It utilizes a 28-pin QFN package measuring 5mm x 5mm with a height of 0.80mm. The component supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Integrates separate LNA/mixer signal paths for cellular, PCS, and GPS bands to optimize dynamic range at minimum current consumption.
• Eliminates up to 35 external components by integrating necessary RF circuitry on-chip.
• Features low LNA noise figures across multiple bands without requiring an external GPS VCO.

Applications

• CDMA cellular and PCS handsets
• GSM and TDMA mobile communication devices
• E911 and traveler assistance applications utilizing GPS signals

Procurement Notes

Verify the specific suffix B50113 against official Maxim Integrated documentation to confirm manufacturing lot details and compliance status. Ensure the procurement source provides valid RoHS certification data consistent with the standard MAX2538 specifications. Cross-reference the part number with Analog Devices or Rochester Electronics records to validate authenticity and traceability before finalizing orders.

Selection Notes

Select this component when designing multi-band receivers requiring integrated LNA and mixer functionality for cellular, PCS, and GPS. It is suitable for applications prioritizing minimal current consumption and reduced bill of materials due to high integration levels. Consider the 28-QFN package constraints for PCB layout and thermal management requirements during the design phase.

Part Context

The MAX2538 belongs to a family of single-die multi-band LNA/mixer ICs optimized for wireless communication standards. This series includes variants such as the MAX2351, MAX2354, and MAX2530, which share similar architectural approaches for handling multiple frequency bands. The MAX2538 specifically addresses the need for compact solutions in mobile devices supporting both voice/data cellular services and location-based GPS functions.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult official manufacturer resources for direct replacements or pin-compatible alternatives within the same product family.