ADF4153BRU-REEL7

Overview

The ADF4153BRUZ-RL7 is a fractional-N frequency synthesizer manufactured by Analog Devices Inc., designed for local oscillator applications in wireless receivers and transmitters. It integrates a low-noise digital phase-frequency detector, precision charge pump, and programmable reference divider. The device supports RF input frequencies from 0.5 GHz to 4.0 GHz and operates on a 2.7 V to 3.3 V power supply. Key specifications include a maximum phase detector frequency of 32 MHz, a typical operating current of 20 mA, and an industrial temperature range of -40°C to +85°C. It utilizes a 3-wire serial interface for register control.

Feature Summary

• Fractional-N synthesis with Σ-Δ based interpolator for programmable modulus (2 to 4095).
• RF input frequency range of 0.5 GHz to 4.0 GHz with separate VP pin for extended tuning voltage up to 5.5 V.
• Programmable charge pump currents ranging from 312.5 µA to 5 mA via external RSET resistor.
• Analog and digital lock detect functions accessible via MUXOUT pin.

Applications

• Base stations for mobile radio including GSM, PCS, DCS, WiMAX, CDMA, and W-CDMA.
• Wireless handsets supporting GSM, PCS, DCS, CDMA, and W-CDMA standards.
• CATV equipment and wireless LANs.
• Communications test equipment.

Procurement Notes

Verify the specific suffix RL7 corresponds to the reel packaging format when sourcing. Confirm that the B version designation aligns with the required -40°C to +85°C operating temperature range, as Y versions are available for extended temperatures. Ensure compatibility with the 16-lead TSSOP package dimensions for PCB layout.

Selection Notes

Select this component for designs requiring a single-chip fractional-N solution with integrated prescaler. Consider the Y version if operation above 85°C is necessary. Designers must account for the separate AVDD, DVDD, SDVDD, and VP power supplies. Use ADIsimPLL software for loop filter design to optimize phase noise and spur performance.

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 device is qualified for automotive applications under specific conditions.

Replacement Considerations

The ADF4153YRUZ serves as a higher temperature variant (-40°C to +125°C) within the same family. Other pin-compatible alternatives include the ADF4110, ADF4111, ADF4112, ADF4113, and ADF4106, though functional differences exist regarding integer-only vs. fractional-N capabilities.