ADF4116BRU-REEL7

Overview

The ADF4116BRU-REEL7 is a single Integer-N phase-locked loop (PLL) frequency synthesizer from Analog Devices, designed for local oscillator implementation in wireless communication systems. It operates with a supply voltage range of 2.7 V to 5.5 V and features a dual-modulus prescaler configured as 8/9. The device includes a low-noise digital phase-frequency detector, a precision charge pump, and programmable counters (R, A, and B). It supports a reference input frequency range of 5 MHz to 100 MHz and an RF input frequency range of 80 MHz to 550 MHz. The component is housed in a 16-lead TSSOP package and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Integrated Integer-N PLL with 8/9 dual-modulus prescaler for frequencies up to 550 MHz
• 3-wire serial interface for register control and digital lock detect functionality
• Fastlock mode capability to accelerate phase-lock acquisition time
• Separate VP pin allows extended tuning voltage up to 6.0 V for improved VCO drive

Applications

• Base stations for wireless radio (GSM, PCS, DCS, CDMA, WCDMA)
• Wireless handsets (GSM, PCS, DCS, CDMA, WCDMA)
• Wireless LANs
• Communications test equipment
• CATV equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and tape-and-reel specifications. Confirm that the B version operating temperature range (-40°C to +85°C) aligns with system requirements. Ensure compatibility with the 3-wire serial interface timing parameters during integration.

Selection Notes

Select the ADF4116 variant specifically for applications requiring RF inputs up to 550 MHz, distinguishing it from the ADF4117 (1.2 GHz) and ADF4118 (3.0 GHz) models. Consider the 8/9 prescaler modulus when calculating division ratios for integer-N synthesis. Verify that the external loop filter design accommodates the charge pump current options of 250 µA or 1 mA.

Part Context

This component belongs to the ADF411x family of RF PLL frequency synthesizers, which shares a common functional architecture including the PFD, charge pump, and serial interface logic. The BRU-REEL7 designation indicates the industrial temperature grade (B), TSSOP-16 package (RU), and reel packaging format. It serves as a lower-frequency alternative within the family compared to the ADF4117 and ADF4118.

Replacement Considerations

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