ADF4153BCPZ-RL7

Overview

The ADF4153BCPZ-RL7 is a fractional-N frequency synthesizer designed for local oscillator generation in wireless transceivers. It integrates a low-noise digital phase-frequency detector, precision charge pump, and programmable reference divider. The device supports RF frequencies up to 4 GHz with a 2.7 V to 3.3 V supply. Key features include a Σ-Δ based fractional interpolator, programmable charge pump currents, and separate VP tuning voltage support. It utilizes a 3-wire serial interface and offers analog/digital lock detect capabilities.

Feature Summary

• Fractional-N synthesis with RF bandwidth up to 4 GHz
• Programmable charge pump currents via RSET resistor
• Separate VP pin allows extended VCO tuning voltage range
• Pin-compatible with ADF4110/ADF4111/ADF4112/ADF4113 families

Applications

• Base stations for mobile radio (GSM, PCS, DCS, WiMAX)
• Wireless handsets (CDMA, W-CDMA)
• CATV equipment
• Communications test equipment

Procurement Notes

Verify the B version operating temperature range of −40°C to +85°C against application requirements. Confirm the LFCSP-20 package exposure paddle connection to ground during assembly. Ensure VP supply does not exceed 5.5 V absolute maximum rating.

Selection Notes

Select this component for designs requiring consistent RF output phase and programmable fractional modulus. Use ADIsimPLL software for loop filter design. Consider the Y version if an extended temperature range of −40°C to +125°C is required instead of the standard B version.

Part Context

This part belongs to the ADF4153 family of fractional-N synthesizers. It serves as a direct replacement for older ADF411x series devices due to pin compatibility. The RL7 suffix indicates reel packaging for automated surface-mount assembly.

Replacement Considerations

Pin-compatible replacements include ADF4110, ADF4111, ADF4112, and ADF4113. Verify register programming compatibility when migrating from these legacy parts.