Pll, Frequency Synthesis, 4.4Ghz, Lfcsp; Frequency:4.4Ghz; Pll Type:Frequency Synthesis & Vco; No. Of Pins:32Pins; Pll Case Style:Lfcsp-Ep; Supply Voltage Min:3V; Supply Voltage Max:3.6V; Operating Temperature Min:-40°C Rohs Compliant: Yes |Analog Devices ADF4351BCPZ

ADF4351BCPZ – 4.4GHz RF Frequency Synthesizer IC – Analog Devices

This Analog Devices ADF4351BCPZ is a high-performance RF PLL frequency synthesizer IC, integrating both fractional-N and integer-N synthesizers with an on-chip VCO. Engineered for precision timing applications, it delivers ultra-low phase noise and flexible frequency generation up to 4.4GHz. PCX supplies this industry-leading component with guaranteed authenticity, same-day shipping, and dedicated technical support.

Key Features

• Frequency Range: Up to 4.4GHz output
• PLL Type: Fractional-N/Integer-N synthesizer with integrated VCO
• Supply Voltage: 3V to 3.6V (low-power operation)
• Temperature Range: -40°C to +85°C (industrial grade)
• Output Type: Differential clock signals (low jitter)
• Input Compatibility: CMOS/TTL logic interfaces
• Package: 32-LFCSP-VQ (5x5mm), surface-mount ready

Technical Details

The ADF4351BCPZ combines a programmable reference divider, phase frequency detector (PFD), and precision charge pump with dual modulus prescalers. Its differential outputs support LVPECL, LVDS, or CMOS levels via software control. The 32-pin LFCSP-EP package features an exposed thermal pad for optimized heat dissipation in dense PCB layouts. RoHS-compliant construction ensures environmental compliance.

Typical Applications

• Wireless infrastructure (5G/LTE base stations)
• Test & measurement equipment (signal generators, spectrum analyzers)
• Satellite communication systems
• Military/aerospace radar and avionics
• High-speed data converter clocking

About Analog Devices

Analog Devices (ADI) is a global leader in high-performance analog and mixed-signal ICs, with over 50 years of innovation in signal processing technology. Their components are renowned for precision, reliability, and cutting-edge design, serving mission-critical applications from industrial automation to telecommunications.

ADI maintains rigorous quality certifications including ISO 9001 and automotive IATF 16949 standards. Their frequency control solutions set industry benchmarks for phase noise performance and frequency agility, making them the preferred choice for engineers designing next-generation RF systems.

About PLL Frequency Synthesizers

Phase-Locked Loop (PLL) synthesizers generate stable, programmable output frequencies from a fixed reference clock. They are fundamental in modern electronics for clock synchronization, frequency translation, and noise reduction. Advanced ICs like the ADF4351 integrate VCOs and dividers to replace multiple discrete components.

RF frequency synthesizers enable precise signal generation in communications, radar, and instrumentation. Key selection criteria include phase noise, switching speed, and integration level. Modern fractional-N architectures provide finer frequency resolution than traditional integer-N designs, supporting complex modulation schemes in wireless systems.

Packaging Options

Available in industry-standard tray packaging for automated SMT assembly. Contact PCX for reel options or custom quantities.

Frequently Asked Questions

Question: What is the phase noise performance of this synthesizer?
Answer: Typical phase noise is -100dBc/Hz at 100kHz offset (2.2GHz output). Refer to the datasheet for complete noise profiles across bands.

Question: Can this IC generate frequencies below 4.4GHz?
Answer: Yes, it supports 35MHz to 4.4GHz through programmable dividers with 1Hz resolution in fractional-N mode.

Question: Is evaluation hardware available for this part?
Answer: PCX provides datasheets and application notes. Analog Devices offers dedicated evaluation boards (ADF4351 evaluation kit) for prototyping.

Question: What is the lock time for frequency switching?
Answer: Typical settling time is 20μs to within 100Hz of final frequency, depending on loop filter configuration.

Question: Does this require external VCO components?
Answer: No – it features a fully integrated VCO with on-chip tuning capacitors, minimizing external components.

Question: How is the device programmed?
Answer: Via 3-wire SPI interface with 32-bit registers. Reference designs and software drivers are in the datasheet.

Note: Product image is representational. Refer to datasheet for exact dimensions and pinout.
Download Full Datasheet

Order Your ADF4351BCPZ Today

Design with confidence using genuine Analog Devices ICs from PCX. Our in-house inventory and global logistics ensure next-business-day delivery. Order now to secure stock!