ADF4002BCPZ

Overview

The ADF4002BCPZ is a phase detector and frequency synthesizer manufactured by Analog Devices Inc. in an LFCSP package. It operates with a power supply range of 2.7 V to 3.3 V and supports a maximum RF input frequency of 400 MHz. The device features a low-noise digital phase frequency detector (PFD) capable of frequencies up to 104 MHz, a precision charge pump with programmable currents ranging from 625 µA to 5 mA, and a 14-bit reference counter. It utilizes a 3-wire serial interface for configuration and includes separate analog and digital lock detect outputs.

Feature Summary

• Integrated low-noise digital PFD and precision charge pump
• Programmable charge pump currents via internal or external settings
• Supports 14-bit R counter and 13-bit N counter for flexible frequency synthesis
• Separate VP pin allows extended tuning voltage up to 5.5 V

Applications

• Clock conditioning and generation
• Local oscillator implementation in wireless receivers and transmitters
• IF LO generation for communication systems

Procurement Notes

Verify the specific B version suffix indicates the industrial temperature range of -40°C to +85°C. Confirm the LFCSP-20 package type matches the design footprint requirements. Ensure the ordering code corresponds to the exact tape and reel quantity if applicable, as packaging variations exist within the product family.

Selection Notes

Select this component when a compact PLL solution is required for frequencies up to 400 MHz. The LFCSP package offers thermal advantages over TSSOP variants. Consider the separate VP supply pin if the application requires a VCO tuning voltage exceeding the standard 3.3 V logic level.

Part Context

This part belongs to the ADF4002 series of integer-N frequency synthesizers. It shares functional architecture with other members like the ADF4001 but differs in package options and specific electrical characteristics. The BC prefix typically denotes the commercial/industrial temperature grade and specific manufacturing lot codes.

Replacement Considerations

Direct replacements include the ADF4002BRUZ (TSSOP-16) for pin-compatible board upgrades where space permits. For equivalent functionality in different packages, verify the ADF4002BCPZ-RL7 variant. Cross-model substitution requires checking register compatibility and thermal dissipation limits.