ADF4001BCP

Overview

The ADF4001BCP is a 200 MHz clock generator PLL from Analog Devices, packaged in a 20-lead LFCSP. It integrates a low-noise digital phase frequency detector (PFD), precision charge pump, programmable reference divider, and a 13-bit N counter. The device supports a 2.7 V to 5.5 V power supply range with a separate charge pump supply (VP) for extended tuning voltage. Key electrical parameters include a typical operating current of 4.5 mA, an input frequency range of 5 MHz to 200 MHz at 5 V, and ultralow phase noise characteristics suitable for stable reference signal generation.

Feature Summary

• 200 MHz bandwidth with ultralow phase noise performance
• Separate charge pump supply (VP) allows extended tuning voltage in 5 V systems
• Programmable charge pump currents via CPI bits
• Hardware and software power-down modes with analog and digital lock detect

Applications

• Clock generation for low frequency PLLs
• Low jitter clock source implementation
• Frequency translation systems
• SONET, ATM, ADM, DSLAM, SDM applications

Procurement Notes

Verify the specific suffix 'BCP' corresponds to the 20-lead LFCSP package variant when sourcing. Confirm that the B-version specifications, including the -40°C to +85°C industrial temperature range, align with system requirements. Ensure proper ESD precautions are taken during handling due to the device's sensitivity.

Selection Notes

Select this component for designs requiring a complete integer-N PLL synthesizer with external loop filter and VCO/VCXO. The N minimum value of 1 provides flexibility in clock generation. Ensure the external RSET resistor is chosen correctly to set the desired charge pump current, as values typically range from 2.7 kΩ to 10 kΩ.

Part Context

The ADF4001BCP is part of the ADF4001 family, which includes variants like ADF4001BRU (16-lead TSSOP). It is hardware compatible with the ADF4110, ADF4111, ADF4112, and ADF4113 series. The evaluation board EV-ADF4001SD1Z is available for testing the device functionality without requiring external filters or VCOs initially.

Replacement Considerations

The ADF4001 is hardware compatible with the ADF4110, ADF4111, ADF4112, and ADF4113. When substituting, verify pinout compatibility and ensure that the replacement device meets the specific 200 MHz bandwidth and phase noise requirements of the original design.