ADF4112BRUZ-REEL7

Overview

The ADF4112BRUZ-REEL7 is a single-channel, integer-N phase-locked loop (PLL) frequency synthesizer from Analog Devices. It supports RF input frequencies up to 3.0 GHz and operates on a power supply ranging from 2.7 V to 5.5 V. The device integrates a low-noise digital phase-frequency detector, a precision charge pump with programmable currents, and a dual-modulus prescaler. Key electrical parameters include a maximum operating temperature of +85°C, a minimum of -40°C, and a typical supply current of 6.5 mA at 5 V. It utilizes a 16-lead TSSOP package.

Feature Summary

• Supports RF input frequencies up to 3.0 GHz
• Integrates a programmable dual-modulus prescaler (8/9, 16/17, 32/33, 64/65)
• Features a separate charge pump supply (VP) for extended tuning voltage in 3 V systems
• Includes hardware and software power-down modes

Applications

• Base stations for wireless radio (GSM, PCS, DCS, CDMA, WCDMA)
• Wireless handsets (GSM, PCS, DCS, CDMA, WCDMA)
• Communications test equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm packaging details. The REEL7 suffix indicates tape-and-reel packaging. Confirm that the B version industrial temperature range (-40°C to +85°C) aligns with the target application requirements before procurement.

Selection Notes

Select this component when an RF input frequency up to 3.0 GHz is required. Ensure the external loop filter and VCO are compatible with the programmable charge pump currents. Verify that the system can accommodate the separate VP supply pin if extended tuning voltage is needed in 3 V applications.

Part Context

This part belongs to the ADF4110 family of RF PLL frequency synthesizers. Other members in this series include the ADF4110 (550 MHz), ADF4111 (1.2 GHz), and ADF4113 (4.0 GHz). All share similar architectural features but differ in maximum RF input frequency specifications.

Replacement Considerations

The ADF4113BRUZ offers a higher maximum RF input frequency of 4.0 GHz while maintaining the same package and interface. The ADF4111BRUZ provides a lower frequency limit of 1.2 GHz. Both are part of the same family and may serve as alternatives depending on frequency requirements.