MAX2309ETI+T

Overview

The MAX2309ETI+T is an integrated RF receiver component designed for CDMA, W-CDMA, and WLL applications. It operates within a frequency range of 70MHz to 300MHz. The device integrates an Intermediate Frequency (IF) Variable Gain Amplifier (VGA) with greater than 110dB of gain control and an I/Q demodulator. It is housed in a 28-TQFN package measuring 5x5 mm.

Feature Summary

• Integrates IF VGA and I/Q demodulation functions
• Supports multiple wireless communication standards including CDMA and W-CDMA
• Provides high dynamic range gain control

Applications

• CDMA mobile communication systems
• W-CDMA base station or handset receivers
• Wireless Local Loop (WLL) equipment

Procurement Notes

Verify the specific suffix ETI+T against the official Analog Devices datasheet to confirm package type and tape/reel specifications. Ensure compatibility with existing PCB footprints for the 28-TQFN form factor. Confirm that the component meets all required RoHS compliance standards for your target market before finalizing procurement orders.

Selection Notes

Select this component when designing receivers for CDMA or W-CDMA bands requiring integrated downconversion and amplification. The >110dB gain control range is suitable for handling varying signal strengths. Consider the 28-TQFN package size for space-constrained designs compared to larger legacy packages.

Part Context

This part belongs to the Maxim Integrated RF receiver family, specifically targeting cellular and wireless local loop markets. It consolidates multiple discrete stages into a single chip to reduce board space and simplify design complexity for mobile infrastructure and handsets operating in the 70-300 MHz range.

Replacement Considerations

Check for direct pin-compatible upgrades within the MAX23xx series. Verify if newer generations from Analog Devices offer improved noise figures or power consumption while maintaining the same interface and package dimensions.