ADF4350ABCPZ-RL7

Overview

The ADF4350ABCPZ-RL7 is a wideband synthesizer with an integrated voltage-controlled oscillator (VCO) manufactured by Analog Devices Inc. It supports both fractional-N and integer-N phase-locked loop (PLL) architectures when used with an external loop filter and reference frequency. The device generates output frequencies ranging from 137.5 MHz to 4400 MHz using a fundamental VCO range of 2200 MHz to 4400 MHz combined with programmable divide-by-1, -2, -4, -8, or -16 circuits. Key electrical specifications include a power supply range of 3.0 V to 3.6 V, typical RMS jitter of less than 0.4 ps, and a low phase noise VCO. Control is managed via a 3-wire serial interface.

Feature Summary

• Integrated VCO with fundamental output frequency range of 2200 MHz to 4400 MHz
• Supports Fractional-N and Integer-N PLL synthesis modes
• Programmable output dividers: ÷1, ÷2, ÷4, ÷8, and ÷16 for frequencies down to 137.5 MHz
• Low phase noise performance with typical RMS jitter <0.4 ps

Applications

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

Procurement Notes

Verify the specific 'A' suffix in the part number ADF4350ABCPZ-RL7 against official Analog Devices documentation, as standard datasheets typically list the ADF4350BCPZ-RL7 variant. Confirm that the ordering suffix does not alter functional parameters or package type before procurement.

Selection Notes

Select this component for applications requiring a wide tuning range up to 4.4 GHz with integrated VCO capabilities. Ensure the design accommodates the 3.0 V to 3.6 V supply requirement and includes an external loop filter. Verify compatibility with 1.8 V logic levels for the serial interface.

Part Context

This component belongs to the ADF4350 series of wideband synthesizers. It is designed to replace discrete PLL/VCO solutions by integrating the phase detector, charge pump, VCO, and output dividers into a single LFCSP-32 package, simplifying PCB layout and reducing component count.

Replacement Considerations

The ADF4350BCPZ-RL7 is the standard commercial grade equivalent listed in public datasheets. Verify if the 'A' suffix denotes a specific temperature or qualification grade change.