ADF4110BRUZ-RL7

Overview

The ADF4110BRUZ-RL7 is a single-channel, integer-N phase-locked loop (PLL) frequency synthesizer from Analog Devices. It operates with an RF input frequency range of 50 MHz to 550 MHz and supports power supplies between 2.7 V and 5.5 V. The device integrates a low-noise digital phase-frequency detector, a precision charge pump, programmable reference and feedback counters, and a dual-modulus prescaler. Designed for wireless applications, it features a 3-wire serial interface, hardware and software power-down modes, and analog/digital lock detect functions.

Feature Summary

• RF Input Frequency Range: 50 MHz to 550 MHz
• Power Supply Voltage: 2.7 V to 5.5 V
• Integrated Dual-Modulus Prescaler: Programmable 8/9, 16/17, 32/33, or 64/65
• Programmable Charge Pump Currents via RSET Resistor

Applications

• Local oscillators for GSM base station transmitters
• Wireless handsets (GSM, PCS, DCS, CDMA, WCDMA)
• Communications test equipment
• CATV equipment

Procurement Notes

Verify the specific suffix RL7 against the manufacturer's current ordering guide to confirm packaging details such as reel quantity and tape specifications. Ensure the B version industrial temperature rating (-40°C to +85°C) aligns with system requirements. Cross-reference the TSSOP-16 package outline dimensions during PCB layout to guarantee mechanical compatibility.

Selection Notes

Select this component when an RF output up to 550 MHz is required. Verify that the external voltage-controlled oscillator (VCO) can be driven by the available charge pump current settings. Ensure the reference input frequency falls within the specified 5 MHz to 104 MHz range for proper phase detector operation. Confirm that the system design accommodates the separate VP supply pin if extended tuning voltages are needed in 3 V systems.

Part Context

This part belongs to the ADF4110 family of RF PLL frequency synthesizers, which also includes the ADF4111 (1.2 GHz), ADF4112 (3.0 GHz), and ADF4113 (4.0 GHz). All members share similar architectural features, including the 3-wire serial interface and programmable prescaler options, differing primarily in their maximum RF input frequency capabilities.

Replacement Considerations

The ADF4111, ADF4112, and ADF4113 are direct pin-compatible alternatives within the same family offering higher frequency ranges. For legacy replacements, verify if the ADF4110BRU-REEL7 variant meets the specific packaging needs, noting that some older listings may indicate end-of-life status.