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ADF4111BRU

ADF4111BRU Description

The ADF4111BRU from Analog Devices Inc. is a high-performance Clock/Frequency Synthesizer (RF) designed for precision timing applications. Operating within a 2.7V to 5.5V supply range, this surface-mount IC supports frequencies up to 1.4GHz, making it suitable for demanding RF and communication systems. The device integrates a Phase-Locked Loop (PLL) and offers flexible input/output configurations, including CMOS/TTL-compatible inputs and clock outputs. Its 2:1 input-to-output ratio and differential I/O capability enhance signal integrity in noisy environments. Packaged in a 16-pin TSSOP tube, the ADF4111BRU is ideal for applications requiring stable, low-jitter clock generation.

ADF4111BRU Features

• High Frequency Range: Supports up to 1.4GHz, enabling use in RF and high-speed digital systems.
• Wide Supply Voltage: Operates from 2.7V to 5.5V, accommodating diverse power environments.
• Flexible I/O: CMOS/TTL inputs and differential outputs for robust signal handling.
• Integrated PLL: Ensures precise frequency synthesis and low phase noise.
• Compact Form Factor: 16-pin TSSOP package saves board space in dense layouts.
• Obsolete Status: While no longer in production, it remains a reliable choice for legacy designs.

ADF4111BRU Applications

The ADF4111BRU excels in:

• Wireless Communication: Base stations, transceivers, and RF modules benefit from its high-frequency stability.
• Test & Measurement Equipment: Precision clock synthesis for oscilloscopes and signal analyzers.
• Broadcast Systems: Low-jitter clock generation for video/audio transmission.
• Military/Aerospace: Harsh-environment applications due to its robust design (ECCN 5A991B).

Conclusion of ADF4111BRU

The ADF4111BRU is a versatile RF frequency synthesizer offering high performance, flexibility, and reliability. Its wide frequency range, low-voltage operation, and differential I/O make it a standout choice for RF and timing-critical designs. While marked as obsolete, its proven architecture ensures continued suitability for legacy and specialized applications. Engineers seeking a compact, high-performance PLL solution will find the ADF4111BRU a compelling option.