MAX2741ETI+

RF Receivers Overview

The MAX2741ETI+ is an integrated L1-band GPS receiver IC designed for mobile handsets, PDAs, and automotive applications. It operates at a frequency of 1575.42 MHz with a supply voltage range of 2.7V to 3V. The device delivers a total voltage gain of 80dB and a cascaded noise figure of 4.7dB, enabling receiver sensitivity suitable for indoor tracking solutions requiring -185dBW. It consumes 30mA during reception and features an integrated synthesizer, VCO, and 2- or 3-bit ADC. The component utilizes a small 28-pin Thin QFN (5x5mm) package with surface mount technology.

RF Receivers Feature Summary

• Integrated L1-band GPS receiver with high-performance compact design for mobile and automotive use
• Supports all popular handset reference frequencies up to 26MHz with SPI control interface
• Tolerates significant in-band and out-of-band jamming signals for robust signal acquisition
• Includes integrated synthesizer, VCO, and IF AGC for simplified system architecture

RF Receivers Applications

• In-Vehicle Navigation Systems (IVNS)
• Telematics including vehicle and asset tracking
• Location-Based Services and Internet on PDAs
• Emergency Response Systems
• Geographical Information Systems (GIS)

RF Receivers Procurement Notes

Verify the specific suffix designation when ordering, as variants such as MAX2741ETI+T may differ in packaging format while maintaining identical electrical characteristics. Confirm that the procurement source provides official documentation from Analog Devices Inc. or Maxim Integrated to ensure authenticity. Check for RoHS compliance status indicated by the plus sign in the part number. Ensure the supplier can provide valid traceability records for critical automotive or safety applications.

RF Receivers Selection Notes

Select this component for applications requiring high sensitivity in challenging signal environments due to its superior jamming tolerance. The integrated nature of the synthesizer and VCO reduces external component count compared to discrete solutions. Consider the 28-TQFN package constraints for PCB layout thermal management. Evaluate the 30mA current consumption against battery life requirements for portable devices. Ensure the baseband processor supports the required SPI interface and clock output specifications.

RF Receivers Part Context

The MAX2741 belongs to the family of L1-band GPS receiver ICs developed by Maxim Integrated, now part of Analog Devices Inc. It is engineered specifically for global positioning system applications operating at the standard L1 frequency. The device represents a solution for integrating GPS functionality into space-constrained consumer electronics and automotive systems without requiring complex external RF front-end components.

RF Receivers Replacement Considerations

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