ADF4118BRU-REEL7

Overview

The ADF4118BRU-REEL7 is a single integer-N RF PLL frequency synthesizer from Analog Devices, designed for local oscillator generation in wireless systems. It operates with an input frequency range of 0.1 GHz to 3.0 GHz and supports power supplies from 2.7 V to 5.5 V. The device features a dual-modulus prescaler (32/33), programmable counters, and a low-noise digital phase-frequency detector. Typical operating current is 6.5 mA at 5 V. It utilizes a 3-wire serial interface for register control and includes fastlock and power-down modes.

Feature Summary

• RF Input Frequency Range: 0.1 GHz to 3.0 GHz
• Dual-Modulus Prescaler: 32/33 configuration
• Power Supply Range: 2.7 V to 5.5 V
• Operating Current: 6.5 mA typical at 5 V

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 B version temperature rating (-40°C to +85°C) against application requirements. Confirm RoHS compliance status as distributor listings may vary. Check for End-of-Life (EOL) status or obsolescence notices prior to final design approval.

Selection Notes

Select this component when a 3.0 GHz maximum RF input frequency is required. Ensure the external VCO tuning voltage does not exceed the VP pin limit of 6.0 V. Verify that the reference input frequency falls within the 5 MHz to 100 MHz range for proper operation.

Part Context

This part belongs to the ADF411x family, which also includes the ADF4116 (550 MHz) and ADF4117 (1.2 GHz). All variants share similar architectures but differ in maximum RF input frequencies and prescaler settings. The BRU suffix indicates the TSSOP-16 package.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.