ADF4169CCPZ-RL7

Overview

The ADF4169CCPZ-RL7 is a 13.5 GHz fractional-N frequency synthesizer designed for direct modulation and fast waveform generation. It features a 25-bit fixed modulus enabling subhertz frequency resolution, with PFD frequencies up to 130 MHz. The device operates on a 2.7 V to 3.45 V analog supply and a 1.8 V to 2 V digital supply. Key specifications include a normalized phase noise floor of −224 dBc/Hz and programmable charge pump currents ranging from 300 μA to 4.8 mA. It supports FSK, PSK, and various ramp waveforms, housed in a 24-LFCSP-WQ (4x4) package.

Feature Summary

• Fractional-N architecture with 25-bit fixed modulus for subhertz frequency resolution
• Integrated cycle slip reduction (CSR) circuitry for faster lock times
• Supports sawtooth, triangular, and dual-slope ramp waveform generation
• Programmable charge pump current (300 μA to 4.8 mA) via external RSET resistor

Applications

• FMCW radar systems
• Communications test equipment
• Communications infrastructure

Procurement Notes

Verify the -RL7 suffix indicates reel packaging when sourcing. Confirm the component meets automotive qualification requirements if applicable to the design. Ensure the ordering documentation matches the specific Analog Devices part number to avoid confusion with non-reel variants.

Selection Notes

Select this component for applications requiring high-frequency synthesis up to 13.5 GHz with precise frequency steps. Consider the 2.7 V to 3.45 V analog supply range and separate 1.8 V to 2 V digital supply during power budgeting. Evaluate the need for CSR functionality to optimize loop filter design and lock time performance.

Part Context

This part belongs to the ADF4169 family of frequency synthesizers. It shares core architectural features with other models in the series but is distinguished by its specific packaging and reel configuration. The device integrates a low-noise PFD, precision charge pump, and Σ-Δ-based fractional interpolator within a single chip.

Replacement Considerations

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