MAX2608EUT-T

Overview

The MAX2608EUT-T is an integrated intermediate frequency voltage-controlled oscillator (IF VCO) manufactured by Analog Devices Inc./Maxim Integrated. It operates within a frequency range of 45 MHz to 650 MHz, with specific variants covering 300 MHz to 500 MHz. The device features differential outputs and an integrated varactor for tuning, housed in a compact SOT-23-6 package. It supports a supply voltage range of 2.7 V to 5.5 V and draws a typical current of 5.5 mA. Key electrical specifications include a tuning voltage range of 400 mVDC to 6 VDC, output power of -10 dBm, and a push rate of 480 kHz/V. The component exhibits a secondary harmonic level of -30 dBc and phase noise of -100 dBc/Hz, operating reliably between -40°C and +85°C.

Feature Summary

• Integrated IF VCO design with differential outputs for improved signal integrity
• Built-in varactor eliminates external tuning components, simplifying circuit layout
• Compact SOT-23-6 surface-mount package suitable for space-constrained applications

Applications

• Wireless local loop (WLL) transceivers
• Personal Communications Services (PCS) systems
• Industrial, Scientific, and Medical (ISM) band equipment

Procurement Notes

Verify the exact suffix and revision level against the manufacturer's latest datasheet to ensure compatibility with specific frequency bands and pin configurations. Confirm RoHS compliance status and country of origin requirements during sourcing. Cross-reference ordering part numbers with authorized distributors to avoid counterfeit components. Ensure storage conditions meet specified temperature and humidity limits to maintain device reliability prior to assembly.

Selection Notes

Select this component when a low-power, small-footprint VCO with differential outputs is required for IF stages. Compare the 300 MHz to 500 MHz variant against broader 45 MHz to 650 MHz ranges based on specific application bandwidth needs. Evaluate the 5.5 mA current consumption against battery-operated system constraints. Consider the integrated varactor feature to reduce bill-of-materials complexity compared to discrete tuning solutions.

Part Context

The MAX2608 belongs to a family of integrated IF VCOs from Maxim Integrated, designed for RF front-end applications. It shares the SOT-23-6 packaging and general architecture with related models like the MAX2607, which covers lower frequencies. These devices utilize silicon germanium technology to enhance performance while minimizing size and power consumption in wireless communication modules.

Replacement Considerations

The MAX2607EUT+T is a documented substitute within the same product family, offering similar functionality but covering a different frequency range of 150 MHz to 300 MHz. Verify that the target application frequency falls within the MAX2607's operational limits before substitution. Pinout and package dimensions remain consistent, facilitating direct board replacement if frequency requirements align.