ADF4110BCPZ-RL7

Overview

The ADF4110BCPZ-RL7 is an Integer-N RF PLL frequency synthesizer from Analog Devices, designed for local oscillator implementation in wireless transceivers. It operates with a supply voltage range of 2.7 V to 5.5 V and supports a maximum RF input frequency of 550 MHz. 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). Control is managed via a 3-wire serial interface, and the component includes hardware and software power-down modes to minimize current consumption during idle periods.

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 allow extended tuning voltages in 3 V systems.
• Provides analog and digital lock detect outputs alongside a multiplexer output for status monitoring.

Applications

• Local oscillators for GSM, PCS, DCS, CDMA, and WCDMA base station transmitters.
• Frequency synthesis for wireless handsets and mobile communication devices.
• Signal generation components in wireless LAN infrastructure equipment.
• Reference sources for communications test and measurement instruments.

Procurement Notes

Verify that the specific ordering suffix matches the required package type and reel quantity. Confirm that the B version industrial temperature rating (-40°C to +85°C) aligns with the target application environment. Ensure the LFCSP-20 package handling procedures account for moisture sensitivity levels prior to soldering.

Selection Notes

Select this model when the design requires an RF input frequency capped at 550 MHz. Consider the ADF4111, ADF4112, or ADF4113 variants if higher frequency operation up to 1.2 GHz, 3.0 GHz, or 4.0 GHz is necessary. Evaluate the need for a separate VP supply pin if the system requires tuning voltages exceeding the main AVDD level.

Part Context

This component belongs to the ADF411x family of integer-N frequency synthesizers. While functionally similar to the ADF4111, ADF4112, and ADF4113, it is distinguished by its lower maximum RF input frequency specification of 550 MHz. All members share the same core architecture, including the PFD, charge pump, and serial control interface.

Replacement Considerations

The ADF4110BRU-REEL7 is a documented alternative within the same family, offering identical electrical specifications but utilizing a TSSOP-16 package instead of the LFCSP-20 form factor. Verify pin compatibility and thermal requirements when substituting between these package types.