ADF4002BCPZ-RL7

Overview

The ADF4002BCPZ-RL7 is an Integer-N phase detector and frequency synthesizer manufactured by Analog Devices Inc. It integrates a low-noise digital phase-frequency detector, precision charge pump, programmable reference divider, and N divider. The device operates on a 2.7 V to 3.3 V power supply with a separate charge pump supply (VP) supporting up to 5.5 V for extended tuning voltage ranges. Key electrical specifications include a maximum RF input frequency of 400 MHz, a phase detector frequency of 104 MHz, and a typical operating current of 5 mA at 3 V. It utilizes a 3-wire serial interface for configuration.

Feature Summary

• Integrated Integer-N frequency synthesizer with 400 MHz bandwidth
• Separate charge pump supply (VP) allows extended tuning voltage in 3 V systems
• Programmable charge pump currents ranging from 625 µA to 5 mA
• Analog and digital lock detect capabilities with hardware and software power-down modes

Applications

• Clock conditioning
• Clock generation
• IF LO generation in wireless receivers and transmitters

Procurement Notes

Verify the specific B version temperature range (-40°C to +85°C) and LFCSP-20 package type against the official datasheet. Confirm that the RL7 suffix corresponds to the reel packaging format as indicated by distributor listings. Ensure compatibility with the required external loop filter and VCO components for the intended application.

Selection Notes

Select this component when a compact, low-power PLL solution is required for frequencies up to 400 MHz. The separate VP pin is critical if the target VCO requires a tuning voltage exceeding the 3.3 V logic supply. Verify that the 13-bit N counter and 14-bit R counter provide sufficient resolution for the desired frequency step size.

Part Context

This part belongs to the ADF4002 series of frequency synthesizers. The B variant specifies the industrial temperature range. The -RL7 suffix typically denotes tape and reel packaging, distinguishing it from tube-packaged versions like the ADF4002BCPZ. It serves as a core clock generation element in RF front-end designs.

Replacement Considerations

Direct pin-compatible replacements within the same family include the ADF4002BRUZ-RL7 (TSSOP-16 package). Other variants such as the ADF4001 or ADF4007 offer different frequency ranges and should be evaluated based on specific bandwidth requirements.