ADF4206BRUZ-RL

Overview

The ADF4206BRUZ-RL is a dual integer-N phase-locked loop (PLL) frequency synthesizer from Analog Devices, designed for local oscillator implementation in wireless transceivers. It integrates two independent synthesizers (RF1 and RF2), each featuring a low-noise digital phase-frequency detector, programmable charge pump, and dual modulus prescaler. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V with a typical current consumption of 14 mA at 3 V. It supports selectable prescaler values of 32/33 or 64/65 for both channels and includes an on-chip oscillator circuit. Control is managed via a 3-wire serial interface, and the part is housed in a 16-lead TSSOP package.

Feature Summary

• Dual integer-N PLL synthesizers with independent RF1 and RF2 sections
• Selectable dual modulus prescaler (32/33 or 64/65) for both channels
• Integrated on-chip oscillator circuit driven by external CMOS/TTL logic
• Programmable charge pump currents (1.25 mA or 5 mA) with three-state leakage control

Applications

• Local oscillators for GSM, PCS, DCS, CDMA, and WCDMA wireless handsets
• Base station local oscillators for wireless radio systems
• Wireless LAN frequency synthesis
• Communications test equipment signal generation

Procurement Notes

Verify that the specific ordering suffix corresponds to the reel packaging configuration required for the assembly line. Confirm that the B-version temperature range (-40°C to +85°C) meets the operational environmental requirements. Ensure compatibility with the 3-wire serial interface timing specifications during system integration.

Selection Notes

Select this component when dual independent frequency synthesis is required within a single package. The ADF4206 variant is specified for frequencies up to 550 MHz for both RF1 and RF2 inputs. Consider the selectable prescaler options to optimize division ratios for target output frequencies. Verify that the external VCO tuning voltage range is compatible with the charge pump supply capabilities.

Part Context

This part belongs to the ADF420x family of dual RF PLL frequency synthesizers. It shares architectural similarities with the ADF4208 but differs in maximum input frequency specifications. The family is designed to replace discrete PLL solutions, reducing board space and component count in mobile communication devices.

Replacement Considerations

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