ADF4110BRUZ-RL

Overview

The ADF4110BRUZ-RL is a single-channel, integer-N RF PLL frequency synthesizer from Analog Devices. It operates with a supply voltage of 2.7 V to 5.5 V and supports an RF input frequency range of 50 MHz to 550 MHz. The device integrates a low-noise digital phase-frequency detector, a precision charge pump, programmable reference and feedback counters, and a dual-modulus prescaler. Control is managed via a 3-wire serial interface. It is housed in a 16-pin TSSOP package and functions as the core loop component when paired with an external voltage-controlled oscillator and loop filter.

Feature Summary

• Supports RF input frequencies up to 550 MHz with a 2.7 V to 5.5 V operating supply.
• Features a programmable dual-modulus prescaler (8/9, 16/17, 32/33, 64/65) for flexible division ratios.
• Includes separate charge pump supply (VP) pin to extend tuning voltage capabilities in 3 V systems.
• Integrates analog and digital lock detect outputs and hardware/software power-down modes.

Applications

• Local oscillators for wireless base station transmitters and receivers.
• Frequency synthesis in wireless handsets supporting GSM, PCS, DCS, CDMA, and WCDMA standards.
• Signal generation for wireless LAN infrastructure.
• Clock sources for communications test equipment.

Procurement Notes

Verify that the specific ordering suffix matches the required packaging format, such as reel or cut tape, as indicated by the manufacturer's documentation. Confirm the B version industrial temperature rating (-40°C to +85°C) aligns with the design environment. Ensure the 16-TSSOP footprint dimensions are compatible with the target PCB layout before finalizing procurement.

Selection Notes

Select this component for applications requiring integer-N synthesis up to 550 MHz. The separate VP pin allows for higher tuning voltages independent of the main logic supply, which is beneficial for driving VCOs with wide tuning ranges. Verify that the required phase detector frequency does not exceed the 55 MHz maximum limit specified in the electrical characteristics table.

Part Context

This part belongs to the ADF411x family of frequency synthesizers, which shares a common architecture but differs in maximum RF frequency. While the ADF4111, ADF4112, and ADF4113 support higher frequencies up to 4.0 GHz, the ADF4110 is optimized for the sub-600 MHz band. All members utilize the same 16-pin TSSOP or LFCSP packages and register map.

Replacement Considerations

The ADF4110BRU-REEL7 is a previous revision of this component available in reel packaging. Other family members like the ADF4111BRUZ offer higher frequency operation but require verification of compatibility with existing VCO tuning curves and loop filter designs.