MAX2309ETI+

Overview

The MAX2309ETI+ 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 Variable Gain Amplifier (IF VGA), an I/Q demodulator, a Voltage Controlled Oscillator (VCO), and a synthesizer. It is housed in a 28-pin TQFN package measuring 5x5 mm.

Feature Summary

• Integrates IF VGA, I/Q demodulator, VCO, and synthesizer into a single chip
• Includes lock detection functionality for signal stability
• Provides adaptable gain control suitable for various component applications

Applications

• CDMA systems
• W-CDMA networks
• Wireless Local Loop (WLL) infrastructure

Procurement Notes

Verify the specific suffix ETI+ against the official Analog Devices datasheet to confirm pinout and thermal specifications. Ensure compatibility with existing PCB footprints for the 28-TQFN package. Cross-reference lot codes and RoHS compliance status directly with manufacturer documentation prior to integration.

Selection Notes

Select this component for designs requiring a simplified quadrature demodulation solution with integrated frequency synthesis. It is suitable for applications needing wide dynamic range gain control in the 70MHz to 300MHz band. Evaluate power consumption and thermal performance relative to the target enclosure constraints.

Part Context

This part belongs to the Maxim Integrated RF Receiver family, specifically targeting wireless communication standards. It serves as a key building block for down-converting RF signals to baseband I/Q outputs while managing local oscillator generation internally.

Replacement Considerations

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