ADF4116BRUZ-REEL

Overview

The ADF4116BRUZ-REEL is an integer-N RF PLL frequency synthesizer from Analog Devices, designed for local oscillator implementation in wireless transceivers. It features a dual-modulus prescaler with an 8/9 ratio and supports RF input frequencies from 80 MHz to 550 MHz. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V, with a typical operating current of 4.5 mA at 3 V. It includes a low-noise digital phase-frequency detector, a precision charge pump, and programmable counters (R, A, and B) controlled via a 3-wire serial interface. The component is housed in a 16-pin TSSOP package.

Feature Summary

• Integrated integer-N PLL with 8/9 dual-modulus prescaler for the ADF4116 variant
• RF input frequency range of 80 MHz to 550 MHz with -15 dBm to 0 dBm sensitivity
• Low power consumption with 4.5 mA typical current draw and 1 µA sleep mode
• Fastlock mode capability for rapid PLL acquisition and digital/analog lock detect outputs

Applications

• Base stations for wireless radio systems including GSM, PCS, DCS, CDMA, and WCDMA
• Wireless handsets supporting GSM, PCS, DCS, CDMA, and WCDMA standards
• Wireless LAN infrastructure equipment
• Communications test and measurement equipment
• CATV signal processing equipment

Procurement Notes

Verify that the specific ordering suffix matches the required packaging format, as REEL indicates tape-and-reel delivery. Confirm the temperature grade corresponds to design requirements; the 'B' suffix denotes industrial range (-40°C to +85°C), while 'Y' denotes extended range (-40°C to +125°C). Ensure the RF input frequency requirements fall within the 80 MHz to 550 MHz specification for this model variant.

Selection Notes

Select the ADF4116 when the application requires an output frequency up to 550 MHz. Verify that the reference input frequency does not exceed 100 MHz and that the PFD frequency remains below 55 MHz. Consider the Fastlock feature if rapid settling time is critical. Ensure the external loop filter and VCO are compatible with the charge pump current options (250 µA or 1 mA typ) and the VP supply voltage limits.

Part Context

This component belongs to the ADF411x family of frequency synthesizers, which shares a common architecture and pinout across variants. The ADF4116 is distinguished by its lower maximum RF input frequency (550 MHz) compared to the ADF4117 (1.2 GHz) and ADF4118 (3.0 GHz). All variants utilize the same 16-pin TSSOP package and control logic, differing primarily in the prescaler configuration and RF front-end specifications.

Replacement Considerations

Direct functional substitutes within the same family include the ADF4117BRUZ and ADF4118BRUZ, provided the higher frequency capabilities do not conflict with system constraints. For applications requiring extended temperature ranges, verify availability of the Y-grade versions (e.g., ADF4116BRUZY). Cross-model substitution requires re-evaluation of RF input sensitivity and prescaler modulus settings.