ADF4107BCPZ

Overview

The ADF4107BCPZ is an Integer-N PLL frequency synthesizer from Analog Devices, designed for implementing local oscillators in wireless transceivers. It features a 7.0 GHz RF bandwidth and operates on a 2.7 V to 3.3 V power supply with a separate charge pump supply (VP) up to 5.5 V. The device integrates a low-noise digital phase frequency detector, programmable charge pump, dual-modulus prescaler (8/9, 16/17, 32/33, 64/65), and 14-bit R counter. It consumes 17 mA typical current at 3 V and supports hardware/software power-down modes. Packaged in a 20-lead LFCSP.

Feature Summary

• 7.0 GHz RF input bandwidth with 2.7 V to 3.3 V operation
• Programmable dual-modulus prescaler: 8/9, 16/17, 32/33, 64/65
• Separate VP supply allows extended tuning voltage up to 5.5 V
• Low noise floor (-223 dBc/Hz) and integrated lock detect

Applications

• Broadband wireless access systems
• Satellite communication systems
• Wireless LANs and base stations
• Instrumentation and test equipment

Procurement Notes

Verify the specific suffix against the manufacturer's ordering guide. The B version indicates an industrial temperature range of -40°C to +85°C. Confirm package type matches the required footprint, as the ADF4107 family includes both TSSOP and LFCSP options. Check for moisture sensitivity levels if lead-free assembly processes are required.

Selection Notes

Select the ADF4107BCPZ when a high-bandwidth integer-N synthesizer is needed for frequencies up to 7 GHz. Ensure the external VCO tuning voltage does not exceed the VP pin limit of 5.5 V. Verify that the prescaler division ratio keeps the PFD frequency within the 104 MHz maximum limit. Consider the 17 mA supply current for power budgeting.

Part Context

The ADF4107 belongs to the ADF410x series of PLL frequency synthesizers. It is functionally similar to the ADF4106 but offers higher RF bandwidth. The BC part number denotes the commercial/industrial grade variant in the LFCSP package. It serves as a direct replacement for older discrete PLL solutions in high-frequency applications.

Replacement Considerations

The ADF4107BRU is a pin-compatible alternative in a TSSOP-16 package. For higher frequency requirements, consider the ADF4108 (8 GHz) or ADF41020 (18 GHz). Ensure any substitute maintains the same prescaler options and charge pump current settings.