ADF4118BRUZ-RL

Overview

The ADF4118BRUZ-RL is a single-channel, integer-N phase-locked loop (PLL) frequency synthesizer manufactured by Analog Devices Inc. It operates with a maximum RF input frequency of 3.0 GHz and supports supply voltages between 2.7 V and 5.5 V. The device features a low-noise digital phase-frequency detector, a precision charge pump, and a dual-modulus prescaler configured for 32/33 division. It includes programmable A (5-bit), B (13-bit), and R (14-bit) counters to implement the N divider function. The component draws a typical operating current of 6.5 mA at 5 V and is housed in a 16-pin TSSOP package.

Feature Summary

• Maximum RF input frequency of 3.0 GHz
• Dual-modulus prescaler set to 32/33
• Low-noise digital phase-frequency detector
• Precision charge pump with separate VP supply

Applications

• Local oscillators for wireless base stations (GSM, PCS, DCS, CDMA, WCDMA)
• Local oscillators for wireless handsets
• Wireless LAN systems
• Communications test equipment
• CATV equipment

Procurement Notes

Verify the specific suffix '-RL' against the manufacturer's ordering guide to confirm reel packaging specifications. Ensure the required temperature grade matches the 'B' version (-40°C to +85°C) or 'Y' version (-40°C to +125°C) as defined in the datasheet specifications. Confirm pinout compatibility with the 16-TSSOP outline dimensions before integration.

Selection Notes

Select the ADF4118 variant when the application requires an RF input frequency up to 3.0 GHz. For lower frequency requirements, consider the ADF4117 (1.2 GHz) or ADF4116 (550 MHz). Ensure the external voltage-controlled oscillator (VCO) tuning range is compatible with the charge pump output capabilities, particularly if utilizing the separate VP pin for extended tuning voltage in 3 V systems.

Part Context

The ADF4118 is part of the ADF411x family, which also includes the ADF4116 and ADF4117 models. These devices share a common functional architecture, including the 3-wire serial interface and register map structure. The primary distinction lies in the maximum supported RF input frequency and the corresponding dual-modulus prescaler settings (8/9 for ADF4116, 32/33 for ADF4117/ADF4118).

Replacement Considerations

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