ADF4169WCCPZ-RL7

Overview

The ADF4169WCCPZ-RL7 is a 13.5 GHz fractional-N frequency synthesizer designed for automotive applications, featuring direct modulation and fast waveform generation capabilities. It utilizes a 25-bit fixed modulus to achieve subhertz frequency resolution. The device integrates a low-noise digital phase frequency detector (PFD), a precision charge pump, and a programmable reference divider. It operates with an analog supply voltage ranging from 2.7 V to 3.45 V and a digital supply voltage between 1.8 V and 2 V. Key specifications include PFD frequencies up to 130 MHz and a normalized phase noise floor of −224 dBc/Hz.

Feature Summary

• RF bandwidth extending to 13.5 GHz with high and low speed FMCW ramp generation.
• 25-bit fixed modulus architecture enabling subhertz frequency resolution.
• Integrated Σ-Δ-based fractional interpolator for programmable fractional-N division.
• Supports FSK and PSK modulation with sawtooth and triangular waveform generation.

Applications

• FMCW radars
• Communications test equipment
• Communications infrastructure

Procurement Notes

Verify the specific ordering suffix WCCPZ-RL7 against official Analog Devices documentation to confirm reel packaging and automotive grade qualification. Ensure compatibility with the 24-LFCSP-WQ package dimensions during PCB layout. Confirm that the local source material aligns with the manufacturer's current datasheet revision for accurate electrical parameters.

Selection Notes

Select this component when automotive-grade certification is required for radar or communication systems operating up to 13.5 GHz. The device supports dual power supplies (AVDD and DVDD) which must be decoupled appropriately. Consider the programmable charge pump currents and CSR circuitry for optimizing lock times without modifying the external loop filter.

Part Context

The ADF4169 belongs to the ADF4169 series of fractional-N frequency synthesizers. The WCCPZ-RL7 designation indicates the automotive grade variant in a 24-lead LFCSP package supplied in a reel format. This part is distinct from industrial versions by its extended temperature range qualification and reliability standards specified for automotive environments.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout and register compatibility if considering alternative synthesizers from other manufacturers.