MAX2870ETJ+

Overview

The MAX2870ETJ+ is a fractional/integer-N synthesizer and VCO operating from 23.5 MHz to 6 GHz. It functions as a high-performance ultra-wideband phase-locked loop (PLL) designed for general-purpose RF applications. The device supports a supply voltage range of 3 V to 3.6 V and operates within a temperature range of -40°C to +85°C. It is housed in a 32-pin TQFN package with surface-mount mounting type.

Feature Summary

• Integrates fractional and integer-N synthesis capabilities with an on-chip VCO
• Supports manual or automatic VCO selection for flexible frequency coverage
• Designed for general-purpose RF signal generation tasks

Applications

• Wireless communications systems
• Clock and timing generation
• Networking equipment

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status directly with the manufacturer or authorized distributors, as regulatory markings may vary by production batch. Ensure the component matches the required 32-TQFN footprint for PCB integration.

Selection Notes

Select this component when a wide frequency range up to 6 GHz is required in a compact form factor. The integrated VCO simplifies design by reducing external component count. Verify that the 3 V to 3.6 V supply voltage aligns with the system power architecture and that the thermal performance meets the operational environment requirements.

Part Context

This part belongs to the Maxim Integrated PLL synthesizer family, now under Analog Devices. It serves as a versatile frequency source for RF front-ends. The ETJ+ designation indicates a lead-free, RoHS-compliant version in a 32-pin TQFN package, suitable for modern surface-mount assembly processes.

Replacement Considerations

Check the MAX2871ETJ+ datasheet for potential compatibility, as it shares similar synthesizer functionality but offers a different output frequency range.