MAX2870ETJ+T

Overview

The MAX2870ETJ+T is an ultra-wideband Phase Locked Loop (PLL) synthesizer and Voltage Controlled Oscillator (VCO) integrated circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of 3 V to 3.6 V, with a typical operating voltage of 3.3 V. The device supports an input frequency range from 10 MHz to 200 MHz and generates output frequencies between 23.5 MHz and 6 GHz. It features a single circuit configuration housed in a TQFN-32 package with an exposed pad, designed for surface mount installation. The operational temperature range spans from -40°C to +85°C, and it consumes approximately 144 mA of working power supply current.

Feature Summary

• Integrates a Voltage Controlled Oscillator (VCO) with programmable charge pump currents to enable fast channel switching capabilities.
• Supports both integer-N and fractional-N mode operations for high-performance frequency synthesis when used with external reference oscillators and loop filters.
• Utilizes silicon technology to provide a compact solution for wireless and RF applications requiring wide bandwidth coverage.

Applications

• Ultra-wideband PLL synthesizer systems
• Frequency synthesizer designs utilizing external reference oscillators
• Wireless communication equipment requiring fast channel switching

Procurement Notes

Verify component authenticity through official Analog Devices channels or authorized distributors. Confirm the specific suffix ETJ+T matches the required tape-and-reel packaging format. Ensure the procurement source provides valid RoHS compliance documentation. Check for any product change notices regarding manufacturing updates. Validate that the supplier offers appropriate warranty terms for integrated circuits.

Selection Notes

Select this component when designing systems requiring frequency synthesis up to 6 GHz with integrated VCO functionality. Consider the 3.3 V nominal supply requirement and 144 mA current consumption during power budgeting. Evaluate the need for external loop filter components and reference oscillators to complete the PLL architecture. Assess thermal management requirements given the TQFN-32 package and exposed pad design for heat dissipation.

Part Context

The MAX2870 belongs to the family of ultra-wideband PLL synthesizers produced by Maxim Integrated, now part of Analog Devices. This series targets applications demanding wide frequency coverage and rapid switching speeds. The ETJ+T designation indicates a specific tape-and-reel variant suitable for automated surface-mount assembly processes in mass production environments.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Analog Devices technical support for direct replacements or cross-reference options based on specific system requirements.

FAQ

What frequency modes does the MAX2870ETJ+T support?

The device supports both integer-N and fractional-N mode operations for frequency synthesis.

What is the maximum output frequency of the MAX2870ETJ+T?

The maximum output frequency range extends up to 6 GHz.