ADF4159CCPZ-RL7

Overview

The ADF4159CCPZ-RL7 is a 13 GHz fractional-N frequency synthesizer featuring direct modulation and fast waveform generation capabilities. It utilizes a 25-bit fixed modulus to achieve subhertz frequency resolution, with a programmable reference divider supporting PFD frequencies up to 110 MHz. The device integrates a low-noise digital phase frequency detector, precision charge pump, and Σ-Δ-based fractional interpolator. It operates on a 2.7 V to 3.45 V analog supply and a 1.8 V digital supply, consuming approximately 40 mA at nominal conditions. The component supports FSK and PSK modulation alongside sawtooth, triangular, and parabolic waveform generation for FMCW radar applications.

Feature Summary

• RF bandwidth extending to 13 GHz with prescaler output frequencies up to 2 GHz
• 25-bit fixed modulus enabling subhertz frequency resolution (fRES = fPFD/2^25)
• High-speed and low-speed FMCW ramp generation with dual sweep rates
• Normalized phase noise floor of -224 dBc/Hz in integer-N mode

Applications

• FMCW radars
• Communications test equipment
• Communications infrastructure

Procurement Notes

Verify the specific ordering suffix RL7 corresponds to the reel packaging configuration required for automated assembly processes. Confirm that the automotive qualification status aligns with target application requirements, as indicated by the manufacturer's product line specifications. Ensure compatibility with the EV-ADF4159EB3Z evaluation platform during initial design validation phases.

Selection Notes

Select this component when subhertz frequency resolution and high PFD frequencies up to 110 MHz are required within a 13 GHz operational range. The device is suitable for designs needing integrated FMCW ramp generation without external waveform controllers. Consider the 24-lead LFCSP package constraints and the necessity of connecting the exposed pad to AGND for optimal thermal performance and electrical grounding.

Part Context

This part belongs to the Analog Devices ADF4159 family of fractional-N PLL frequency synthesizers. It is specifically designed for high-performance RF applications requiring precise frequency control and modulation capabilities. The device complements other ADI signal chain components by providing a compact solution for local oscillator generation in modern wireless and radar systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout and register compatibility if considering alternative frequency synthesizers from different manufacturers or previous generations within the same product family.