ADF5001BCPZ

Overview

The ADF5001BCPZ is a low-noise, fixed divide-by-4 RF prescaler from Analog Devices. It operates within a frequency range of 4 GHz to 18 GHz and functions on a single 3.3 V supply. The device features integrated RF decoupling capacitors and provides differential 100 Ω outputs for direct interface with PLL ICs such as the ADF4156 or ADF4106. Key electrical specifications include an active current consumption of 30 mA and a power-down mode current of 7 mA. Phase noise performance reaches −150 dBc/Hz at a 12 GHz input frequency with a 100 kHz offset. The component is housed in a compact 3 mm × 3 mm LFCSP package and supports an industrial temperature range from −40°C to +105°C.

Feature Summary

• Divide-by-4 prescaler operation covering 4 GHz to 18 GHz input frequencies
• Low phase noise specification of −150 dBc/Hz at 12 GHz input
• Integrated RF decoupling capacitors and differential 100 Ω outputs
• Single 3.3 V supply compatibility with 30 mA active current consumption

Applications

• PLL frequency range extender
• Point-to-point radios
• VSAT radios
• Communications test equipment

Procurement Notes

Verify the specific ordering suffix when sourcing components. The ADF5001BCPZ denotes the standard tray-packaged version, while the ADF5001BCPZ-RL7 indicates a tape-and-reel configuration. Both variants share identical electrical characteristics and temperature ranges. Confirm RoHS compliance status through official manufacturer documentation prior to procurement.

Selection Notes

Select this component for applications requiring high-frequency division up to 18 GHz with minimal added phase noise. Ensure the downstream PLL accepts differential inputs or design appropriate single-ended conversion circuits. Verify that the system power supply can maintain stability within the 3.0 V to 3.6 V operating window to guarantee optimal output power and sensitivity performance across the full industrial temperature range.

Part Context

The ADF5001BCPZ belongs to the ADF5001 series of RF prescalers manufactured by Analog Devices. It is designed to extend the operational frequency range of phase-locked loops by dividing high-frequency signals down to levels suitable for standard PLL synthesizers. The device integrates biasing and decoupling elements to simplify circuit board layout and reduce external component count in microwave systems.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative prescalers based on matching frequency ranges, divide ratios, and output interface requirements.

FAQ

What is the function of the CE pin?

The CE (Chip Enable) pin controls the power state. When driven high, the device operates in active mode; when driven low, it enters power-down mode. If unused, the pin can remain unconnected due to an internal weak pull-up resistor.

How should the exposed paddle be handled?

The exposed paddle on the LFCSP package must be connected to ground (GND) to ensure proper thermal dissipation and electrical performance.

What is the recommended connection method for the outputs?

A differential connection is recommended for best performance and maximum power transfer. The device provides differential 100 Ω outputs compatible with PLL inputs like those on the ADF4156.