ADF4150BCPZ-RL7

Overview

The ADF4150BCPZ-RL7 is a Fractional-N/Integer-N PLL synthesizer from Analog Devices Inc. It supports RF input frequencies from 0.5 GHz to 5.0 GHz and provides an output frequency range up to 750 MHz when using internal dividers. The device operates on a 3.0 V to 3.6 V power supply with a typical current consumption of 50 mA. Key features include a programmable dual-modulus prescaler (4/5 or 8/9), separate charge pump supply (VP) for extended tuning voltage, and a 3-wire serial interface. It is housed in a 24-pin LFCSP package.

Feature Summary

• Supports both Fractional-N and Integer-N phase-locked loop architectures
• RF input frequency range extends up to 5.0 GHz
• Programmable output dividers allow division by 1, 2, 4, 8, or 16
• Separate VP pin enables charge pump supply voltages up to 5.5 V

Applications

• Wireless infrastructure systems including W-CDMA, TD-SCDMA, WiMax, GSM, PCS, DCS, and DECT
• Test and measurement equipment
• Wireless LANs and CATV equipment
• Clock generation circuits

Procurement Notes

Verify the specific B version suffix against the latest Analog Devices datasheet to confirm parameter tolerances. Ensure the external loop filter design accounts for the programmable charge pump current settings defined by the RSET resistor. Confirm that the application circuit supports the required VP supply voltage if extended VCO tuning ranges are necessary.

Selection Notes

Select this component for designs requiring high-frequency synthesis up to 5 GHz with flexible fractional or integer modes. Consider the separate VP supply requirement if the target VCO needs a tuning voltage exceeding the main AVDD rail. Verify that the available reference input frequency aligns with the 10 MHz to 250 MHz specification range for optimal PFD operation.

Part Context

This part belongs to the ADF4150 series of PLL synthesizers. It is software compatible with the ADF4350, facilitating potential migration between these models. The device integrates a third-order fractional interpolator and cycle slip reduction features to optimize spur performance and lock times in demanding RF applications.

Replacement Considerations

The ADF4350 is identified as a software-compatible alternative within the same product family. Designers should verify register mapping compatibility and check for any differences in absolute maximum ratings or thermal characteristics before substituting.