ADF4153BRUZ-RL7

Overview

The ADF4153BRUZ-RL7 is a fractional-N frequency synthesizer from Analog Devices, 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 operates within an industrial temperature range of −40°C to +85°C and utilizes a 3-wire serial interface for register control.

Feature Summary

• Fractional-N architecture with Σ-Δ interpolator for precise frequency synthesis up to 4 GHz
• Programmable charge pump currents ranging from 312.5 µA to 5 mA via external RSET resistor
• Separate VP pin allows extended VCO tuning voltage range up to 5.5 V
• Integrated analog and digital lock detect functions with MUXOUT access

Applications

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

Procurement Notes

Verify the B version operating temperature range of −40°C to +85°C against application requirements. Confirm that the TSSOP-16 package matches the PCB footprint. Ensure the RL7 suffix indicates reel packaging compatible with automated assembly processes. Cross-reference the specific revision G datasheet for any updates to absolute maximum ratings or timing specifications.

Selection Notes

Select this component when a single-chip fractional-N solution is required for RF upconversion or downconversion. The B version is suitable for standard industrial environments, while the Y version offers extended temperature capability if needed. Consider the programmable modulus and charge pump settings for loop filter design optimization using ADIsimPLL tools. Ensure the reference input frequency falls within the 10 MHz to 250 MHz range.

Part Context

This part belongs to the ADF4153 family of frequency synthesizers. It is pin-compatible with the ADF4110, ADF4111, ADF4112, ADF4113, and ADF4106 series, facilitating direct upgrades or replacements in existing designs. The BRUZ-RL7 designation specifies the B grade temperature rating, TSSOP-16 package, and reel packaging format.

Replacement Considerations

Pin-compatible substitutes include ADF4110, ADF4111, ADF4112, ADF4113, and ADF4106. Verify functional equivalence regarding charge pump current ranges and RF input sensitivity before substitution.