ADF4360-7BCP

Overview

The ADF4360-7 is an integrated integer-N synthesizer and voltage-controlled oscillator (VCO) manufactured by Analog Devices Inc. It operates within a frequency range of 350 MHz to 1800 MHz, with an optional divide-by-2 output extending down to 175 MHz. The device functions on a 3.0 V to 3.6 V power supply and features a 3-wire serial interface for register control. Key electrical specifications include a typical phase noise of -116 dBc/Hz at 100 kHz offset and programmable output power levels ranging from -14 dBm to -5 dBm. It incorporates dual-modulus prescalers, analog and digital lock detect capabilities, and hardware/software power-down modes.

Feature Summary

• Integrated Integer-N Synthesizer and VCO with 350 MHz to 1800 MHz output range
• Programmable Dual-Modulus Prescaler supporting 8/9, 16/17, or 32/33 division ratios
• 3-Wire Serial Interface with 1.8 V logic compatibility
• Analog and Digital Lock Detect with Mute-Till-Lock feature

Applications

• Wireless handsets (DECT, GSM, PCS, DCS, WCDMA)
• Test equipment
• Wireless LANs
• CATV equipment

Procurement Notes

Verify the specific package type and tape/reel configuration against the manufacturer's current ordering guide. Confirm that external inductors are selected to match the desired center frequency, as the internal VCO range depends on these components. Ensure power supply decoupling meets the guidelines for AVDD, DVDD, and VVCO pins to maintain specified phase noise performance.

Selection Notes

Select the appropriate dual-modulus prescaler setting (8/9, 16/17, or 32/33) based on the required VCO frequency to ensure contiguous tuning. Choose external inductors for L1 and L2 pins to set the VCO core frequency band; values greater than 3.3 nH require parallel 470 Ω resistors. Configure the charge pump current via RSET to optimize loop bandwidth and phase noise for the specific application requirements.

Part Context

The ADF4360-7 belongs to the ADF4360 family of frequency synthesizers. It shares architectural similarities with other variants like the ADF4360-2, ADF4360-4, and ADF4360-8, which differ primarily in their output frequency ranges. While the ADF4360-7 covers 350–1800 MHz, other models target lower or higher bands. All variants utilize similar 3-wire control interfaces and integrated VCO architectures.

Replacement Considerations

Direct pin-compatible replacements within the same package may include other ADF4360 family members such as the ADF4360-2, ADF4360-4, or ADF4360-8, provided their frequency ranges align with the design requirements. Verify that the substitute part supports the necessary prescaler settings and output power levels.