ADF5000BCPZ

Overview

The ADF5000BCPZ is a divide-by-2 RF prescaler from Analog Devices, operating within a frequency range of 4 GHz to 18 GHz. Designed for low phase noise applications, it delivers -147 dBc/Hz at 12 GHz with a 100 kHz offset. The device functions on a single 3.3 V supply, drawing 30 mA in active mode and 17 mA in power-down mode. It features integrated RF decoupling capacitors and provides differential 100 Ω outputs suitable for direct interfacing with PLL ICs like the ADF4156. Housed in a compact 3 mm × 3 mm LFCSP package, it supports industrial temperatures from -40°C to +105°C.

Feature Summary

• Divide-by-2 prescaler covering 4 GHz to 18 GHz input frequencies
• Low phase noise performance of -147 dBc/Hz at 12 GHz (100 kHz offset)
• Integrated RF decoupling capacitors simplify PCB layout
• Differential 100 Ω RF outputs for direct connection to PLL inputs

Applications

• PLL frequency range extenders
• Point-to-point radio systems
• VSAT radio equipment
• Communications test instruments

Procurement Notes

Verify the specific ordering suffix when purchasing. The base part number ADF5000BCPZ denotes the component in a tube or bulk packaging format. The suffix -RL7 indicates availability in 7-inch tape and reel packaging. Confirm the required packaging type matches the production assembly needs before placing orders.

Selection Notes

Select this component when extending the operational frequency range of integer-N PLLs beyond their native limits. Ensure the system requires a fixed divide-by-2 ratio rather than variable division ratios found in other prescaler families. Verify that the 3.3 V supply voltage aligns with the target PLL charge pump and reference clock requirements.

Part Context

This component belongs to the ADF5000 series of RF prescalers manufactured by Analog Devices. It serves as a high-frequency front-end block for synthesizer designs. Other variants in the family include the ADF5001 (divide-by-4) and ADF5002 (divide-by-8), offering different division ratios for similar frequency ranges.

Replacement Considerations

Direct functional substitutes within the same division ratio category include the ADF5001BCPZ for divide-by-4 applications and the ADF5002BCPZ for divide-by-8 scenarios. These alternatives share similar package footprints and supply voltage requirements but differ in internal division logic.