MAX2741ETI+T

RF Receivers Overview

The MAX2741ETI+T is an integrated L1-band GPS receiver IC designed for mobile handsets, PDAs, and automotive applications. It operates at a frequency of 1575.42MHz in a 28-TQFN (5x5) surface-mount package. The device provides a total voltage gain of 80dB and a cascaded noise figure of 4.7dB, enabling receiver sensitivity for indoor tracking solutions requiring -185dBW. It features an integrated synthesizer, VCO, and 2- or 3-bit ADC with a 50dB IF AGC range.

RF Receivers Feature Summary

• Integrated L1-band GPS receiver with high-performance compact design
• Supports all popular handset reference frequencies up to 26MHz
• Includes integrated synthesizer, VCO, and 2- or 3-bit ADC
• SPI control interface with clock output for baseband processor

RF Receivers Applications

• In-Vehicle Navigation Systems (IVNS)
• Telematics including vehicle and asset tracking
• Emergency response systems and road-side assistance
• Location-based services for PDAs and consumer electronics
• Geographical Information Systems (GIS)

RF Receivers Procurement Notes

Verify the component status as obsolete before procurement planning. Confirm that the ordering suffix +T indicates tape-and-reel packaging if required by assembly processes. Ensure compatibility with existing SPI control interfaces and baseband processor clock requirements. Validate that the 28-TQFN package dimensions align with current PCB layout constraints. Check for any specific environmental or thermal management needs associated with the -40°C to +85°C operating temperature range.

RF Receivers Selection Notes

Select this component for applications requiring a compact, high-gain GPS solution with integrated signal processing. The 80dB cascaded gain and 4.7dB noise figure make it suitable for challenging signal environments, including indoor tracking. Consider the integrated synthesizer and VCO to reduce external component count. Ensure the system can accommodate the SPI interface and supports reference frequencies up to 26MHz. Evaluate the need for the specific 2- or 3-bit ADC resolution based on baseband processing capabilities.

RF Receivers Part Context

The MAX2741ETI+T belongs to the MAX2741 family of integrated GPS receivers from Maxim Integrated, now part of Analog Devices Inc. This series targets mobile and automotive markets with a focus on miniaturization and performance. The ETI+T variant specifies the industrial temperature range and tape-and-reel packaging format. It represents a mature technology node for L1-band GNSS reception, often superseded by newer multi-band solutions but still relevant for single-band legacy designs.

RF Receivers Replacement Considerations

The datasheet lists the MAX2741ETI as a similar part number within the same product family. No other public confirmed substitute part numbers are explicitly documented in the provided source material.