ADF4252BCP-REEL7

Overview

The ADF4252BCP-REEL7 is a dual fractional-N/integer-N frequency synthesizer manufactured by Analog Devices Inc. It integrates two independent synthesizers: an RF section supporting up to 3.0 GHz and an IF section supporting up to 1.2 GHz. The device operates on a 2.7 V to 3.3 V supply with separate power pins for the charge pumps (VP1, VP2) allowing extended tuning voltages up to 5.5 V. Key specifications include a programmable dual modulus prescaler, digital lock detect, and a 3-wire serial interface. It is housed in a 24-lead LFCSP package.

Feature Summary

• Dual synthesizer architecture with RF input up to 3.0 GHz and IF input up to 1.2 GHz
• Fractional-N capability via Σ-Δ interpolator for RF; Integer-N counters for IF
• Programmable dual modulus prescalers (RF: 4/5 or 8/9; IF: 8/9, 16/17, 32/33, or 64/65)
• Separate VP1 and VP2 pins support charge pump voltages up to 5.5 V

Applications

• Base stations for mobile radio (GSM, PCS, DCS, CDMA, WCDMA)
• Wireless handsets (GSM, PCS, DCS, CDMA, WCDMA)
• Wireless LANs
• Communications test equipment
• CATV equipment

Procurement Notes

Verify that the component matches the specific ordering code ADF4252BCP-REEL7. Confirm the package type is LFCSP-24 and the suffix indicates reel packaging. Ensure the voltage grade corresponds to the 'B' designation if critical for your design parameters.

Selection Notes

Select this component when a single chip solution is required for both upconversion and downconversion local oscillators. The dual synthesizer allows independent configuration of RF and IF frequencies. Consider the separate VP pins if the external VCO requires a control voltage exceeding the standard 3.3 V logic level.

Part Context

This part belongs to the ADF4252 family of frequency synthesizers. The 'BCP' designation identifies the lead-free LFCSP-24 package variant. The '-REEL7' suffix specifies the tape and reel packaging format used for automated assembly processes.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.