ADF4372BCCZ-RL7

Overview

The ADF4372BCCZ-RL7 is a microwave wideband synthesizer with an integrated voltage-controlled oscillator (VCO), manufactured by Analog Devices Inc. It supports fractional-N and integer-N phase-locked loop (PLL) configurations when used with an external loop filter and reference frequency. The device generates RF output frequencies ranging from 62.5 MHz to 16 GHz. Key electrical specifications include a typical integrated RMS jitter of 38 fs (measured between 1 kHz and 100 MHz offset) and a normalized phase noise floor of -234 dBc/Hz for integer channels. The unit operates on analog and digital power supplies of 3.3 V (typical) and a VCO supply of 3.3 V or 5 V, housed in a 7 mm × 7 mm, 48-terminal LGA package.

Feature Summary

• Wideband frequency synthesis covering 62.5 MHz to 16 GHz using an integrated VCO core operating at 4 GHz to 8 GHz.
• Supports both fractional-N and integer-N PLL architectures with a high-resolution 39-bit fractional modulus.
• Provides multiple programmable RF outputs: RF8x (62.5 MHz–8 GHz), RFAUX8x (duplicates RF8x or provides direct VCO access), and RF16x (8 GHz–16 GHz via frequency doubling).
• Features fast lock time capabilities, achieving approximately 3 ms with automatic calibration and less than 30 μs when autocalibration is bypassed.

Applications

• Wireless infrastructure systems including multicarrier global system for mobile communication (MC-GSM) and 5G networks.
• Test equipment and instrumentation requiring precise clock generation.
• Aerospace and defense applications demanding wideband signal synthesis.

Procurement Notes

Verify the specific ordering suffix RL7 confirms the reel packaging format required for automated assembly processes. Ensure compatibility with the EV-ADF4372SD2Z evaluation kit for initial design validation. Confirm that the LGA-48 package thermal requirements are addressed in the PCB layout, specifically regarding the exposed pad connection to ground for mechanical stability and heat dissipation.

Selection Notes

Select this component when a single-chip solution is needed for frequencies up to 16 GHz without external VCOs. Choose based on the required output frequency range; use RF8x for sub-8 GHz signals and RF16x for higher frequencies. Consider the power supply configuration, as the VCO can be powered by either 3.3 V or 5 V depending on performance needs. Verify that the external reference input meets the sensitivity requirements for single-ended or differential modes.

Part Context

The ADF4372 belongs to the ADF437x family of microwave wideband synthesizers from Analog Devices. It shares the same 48-terminal LGA package footprint and control interface architecture with related models such as the ADF4371 and ADF4377. While the ADF4371 extends the upper frequency limit to 32 GHz, the ADF4372 is optimized for the 16 GHz range. The BCCZ suffix indicates the specific lead-free, RoHS-compliant variant within the standard product line.

Replacement Considerations

The ADF4371BCCZ-RL7 offers a wider frequency range up to 32 GHz but may require different biasing considerations. The ADF4377BCCZ-RL7 is a clock synthesizer/jitter cleaner with a maximum output of 12.8 GHz and different internal architecture. Direct pin-to-pin replacement requires verification of register compatibility and power supply configurations against the target application's frequency and jitter specifications.