ADF4113BRU-REEL7

Overview

The ADF4113BRU-REEL7 is a single-channel, integer-N phase-locked loop (PLL) frequency synthesizer from Analog Devices. It supports RF input frequencies up to 4.0 GHz and operates on a power supply ranging from 2.7 V to 5.5 V. The device features a low-noise digital phase-frequency detector, a precision charge pump with programmable currents, and a programmable dual-modulus prescaler (8/9, 16/17, 32/33, or 64/65). It includes a 14-bit reference counter and 6-bit/13-bit A/B counters for flexible frequency synthesis. The component utilizes a 3-wire serial interface and offers hardware/software power-down modes. It is housed in a 16-lead TSSOP package and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Supports RF input frequencies up to 4.0 GHz with a 2.7 V to 5.5 V operating voltage range.
• Integrates a programmable dual-modulus prescaler (8/9, 16/17, 32/33, 64/65) and a precision charge pump.
• Features a separate charge pump supply pin (VP) to allow extended tuning voltages in 3 V systems.
• Includes analog and digital lock detect functions alongside a 3-wire serial control interface.

Applications

• Local oscillators for wireless base stations (GSM, PCS, DCS, CDMA, WCDMA)
• Frequency synthesis for wireless handsets
• Wireless LAN applications
• Communications test equipment
• CATV equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm packaging details. The REEL7 suffix typically indicates tape and reel packaging, but official datasheets should be consulted for exact quantities and handling instructions. Ensure compatibility with the required industrial temperature range (-40°C to +85°C) for the B version.

Selection Notes

Select the ADF4113 variant when an RF input frequency up to 4.0 GHz is required, distinguishing it from the lower-frequency ADF4110 (550 MHz), ADF4111 (1.2 GHz), and ADF4112 (3.0 GHz). Consider the separate VP pin if the system requires a charge pump supply voltage higher than the main AVDD/DVDD rails, such as driving VCOs with wide tuning ranges in 3 V systems.

Part Context

The ADF4113 is part of the ADF4110 family of RF PLL frequency synthesizers. This family shares a common architecture including a low-noise PFD, programmable counters, and a dual-modulus prescaler. The primary differentiation among the family members is the maximum supported RF input frequency, with the ADF4113 offering the highest bandwidth capability at 4.0 GHz.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Designers should consult the manufacturer's latest documentation for any obsolescence notices or recommended upgrades.