ADF41020BCPZ-RL7

Overview

The ADF41020BCPZ-RL7 is an 18 GHz microwave PLL synthesizer from Analog Devices. It features a low-noise digital phase frequency detector, precision charge pump, and programmable reference divider. The device supports RF input frequencies from 4 GHz to 18 GHz with a typical operating current of 30 mA at 3.0 V. It utilizes a SiGe prescaler and offers software compatibility with the ADF4106/ADF4107/ADF4108 family. Packaged in a 20-lead LFCSP, it enables high-bandwidth local oscillator implementations for wireless infrastructure.

Feature Summary

• Maximum RF input frequency of 18 GHz
• Integrated SiGe prescaler with programmable dual-modulus options (8/9, 16/17, 32/33, 64/65)
• Software compatible with ADF4106/ADF4107/ADF4108 family
• Programmable charge pump currents ranging from 625 µA to 5.0 mA

Applications

• Microwave point-to-point/multipoint radios
• Wireless infrastructure equipment
• VSAT radios
• Test equipment and instrumentation

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm the specific suffix RL7 corresponds to the required reel packaging format. Check for End-of-Life status updates as product availability may change. Ensure environmental compliance documentation matches project requirements.

Selection Notes

Select this component when local oscillator frequencies up to 18 GHz are required without external frequency doublers. Ensure the design accommodates the 2.85 V to 3.15 V power supply range. Verify that the external VCO can be driven by the programmable charge pump currents. Consider the LFCSP-20 package thermal impedance for PCB layout planning.

Part Context

This part belongs to the ADF41020 series of microwave PLL synthesizers. It serves as a direct software-compatible replacement for older designs using the ADF4106, ADF4107, or ADF4108, requiring only minor layout adjustments due to pinout similarities. It addresses the need for simplified system architectures by eliminating doubler stages in high-frequency applications.

Replacement Considerations

Publicly confirmed substitute part numbers include ADF4106, ADF4107, and ADF4108. These devices share software compatibility and similar pinouts, facilitating migration from legacy designs.