ADF4350BCPZ

Overview

The ADF4350BCPZ is a wideband synthesizer with an integrated voltage-controlled oscillator (VCO) manufactured by Analog Devices Inc. It supports fractional-N and integer-N phase-locked loop (PLL) frequency synthesis, covering an output range from 137.5 MHz to 4400 MHz. The device operates on a 3.0 V to 3.6 V power supply and features a 3-wire serial interface compatible with 1.8 V logic. Key electrical specifications include a typical RMS jitter of less than 0.4 ps and programmable output power levels ranging from -4 dBm to 5 dBm. It utilizes a dual-modulus prescaler and includes analog and digital lock detect functions.

Feature Summary

• Integrated VCO with fundamental output frequency range of 2200 MHz to 4400 MHz
• Fractional-N and integer-N PLL synthesizer capabilities
• Programmable divide-by-1/2/4/8/16 output circuits for frequencies down to 137.5 MHz
• Low phase noise performance with typical RMS jitter under 0.4 ps

Applications

• Wireless infrastructure including W-CDMA, TD-SCDMA, WiMAX, GSM, PCS, DCS, and DECT
• Test equipment requiring precise frequency generation
• Wireless LANs and CATV equipment
• Clock generation systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and reel specifications. Ensure compatibility with the required operating temperature range of -40°C to +85°C. Confirm that the 32-pin LFCSP package dimensions align with the PCB footprint design guidelines provided in the datasheet.

Selection Notes

Select this component when a wide tuning range up to 4.4 GHz with low phase noise is required. Consider the integrated VCO to reduce external component count. Evaluate the need for fractional-N synthesis for fine frequency resolution or integer-N for lower spurious content. Ensure the reference input frequency and PFD settings fall within the specified limits for optimal charge pump performance.

Part Context

The ADF4350BCPZ belongs to the ADF4350 series of wideband synthesizers from Analog Devices. It is designed for high-performance RF applications where compact size and low noise are critical. The B version denotes specific electrical characteristics and revisions documented in Rev. B of the data sheet. It serves as a core frequency generation block in modern wireless communication systems.

Replacement Considerations

Consult the official Analog Devices ordering guide for verified substitute part numbers within the same family or product line. Cross-reference pinouts and electrical specifications to ensure functional equivalence before implementation.