ADF4218BRU

Overview

The ADF4218BRU is a single-channel, integer-N phase-locked loop (PLL) synthesizer manufactured by Analog Devices Inc. It operates within an input frequency range of 10 MHz to 3 GHz and supports output frequencies up to 500 MHz. The device functions on a supply voltage between 2.6 V and 3.3 V, with a typical operating current of 7 mA. Packaged in a 20-lead TSSOP, it is designed for low-power applications requiring precise frequency synthesis.

Feature Summary

• Single-channel Integer-N PLL architecture
• Input frequency range: 10 MHz to 3 GHz
• Low power consumption: 7 mA typical at 3.3 V
• 20-lead TSSOP surface-mount package

Applications

• Wireless communication base stations
• Test and measurement equipment
• Frequency synthesizers for RF transceivers

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm package type and tape/reel specifications. Ensure compatibility with system voltage requirements of 2.6 V to 3.3 V. Confirm RoHS compliance status through the manufacturer's latest datasheet or environmental declaration before procurement.

Selection Notes

Select this component when a single-loop solution is required for frequencies up to 3 GHz input. Compare against dual-loop variants like the ADF4218L if two independent loops are needed. Verify that the 20-lead TSSOP footprint fits the PCB layout constraints and that the 7 mA current draw aligns with thermal management capabilities.

Part Context

This part belongs to the ADF4218 family of low-power PLL synthesizers. It shares architectural similarities with the ADF4218L but differs in channel count and specific performance optimizations. The BRU suffix typically denotes a specific package variant and temperature grade within the Analog Devices portfolio.

Replacement Considerations

Direct replacements include other single-loop Integer-N PLLs from Analog Devices such as the ADF4118 series, though pinouts and electrical characteristics must be verified. Cross-model substitution requires checking input frequency limits and package dimensions.