ADF4377BCCZ-RL7

Overview

The ADF4377BCCZ-RL7 is a microwave wideband synthesizer with an integrated VCO, manufactured by Analog Devices Inc. It operates as a dual-output integer-N PLL covering an output frequency range of 800 MHz to 12.8 GHz. The device features ultralow jitter performance, specified at 18 fsRMS (100 Hz to 100 MHz) and 27 fsRMS via the ADC SNR method. It utilizes separate 3.3 V and 5 V power supplies, drawing typical currents of approximately 197 mA on the 3.3 V rail and up to 220 mA on the 5 V rail depending on frequency. Packaged in a 7 mm × 7 mm 48-lead LGA, it supports phase detector frequencies up to 500 MHz and reference inputs up to 1000 MHz.

Feature Summary

• Ultralow integrated jitter: 18 fsRMS (100 Hz to 100 MHz) and 27 fsRMS (ADC SNR method).
• Wideband noise floor of −160 dBc/Hz at 12 GHz with normalized in-band phase noise floor of −239 dBc/Hz.
• Integrated automatic reference-to-output synchronization for precise multichip clock alignment.
• Dual differential outputs with programmable amplitude and adjustable propagation delay step size < ±0.1 ps.

Applications

• High-performance data converter and mixed-signal front end (MxFE) clocking.
• Wireless infrastructure systems including MC-GSM and 5G.
• Test and measurement equipment requiring low-jitter reference signals.

Procurement Notes

Verify the component against the official Analog Devices datasheet Rev. 0 to confirm electrical specifications and pinout compatibility. Ensure that the 3.3 V and 5 V supply rails are correctly decoupled according to the application guidelines. Confirm that the PCB layout accommodates the 48-lead LGA package dimensions and thermal requirements for proper heat dissipation during operation.

Selection Notes

Select this component when applications require a single-chip solution for generating high-frequency clocks with minimal jitter. The integrated VCO eliminates the need for external oscillators, simplifying board space constraints. Consider the device's ability to handle reference frequencies up to 1000 MHz and its support for JESD204B/C Subclass 1 alignment if system synchronization is a priority.

Part Context

This part belongs to the ADF4377 series of microwave wideband synthesizers. The BCCZ suffix indicates the specific lead-free packaging and temperature rating, while the RL7 designation specifies the reel packaging format used for surface-mount assembly. It is distinct from other family members like the ADF4371, which offers different output configurations and frequency ranges.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative devices based on matching output frequency ranges, jitter specifications, and package footprint compatibility.