ADF4169CCPZ

Overview

The ADF4169CCPZ is a 13.5 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 an overall N divider defined by INT and FRAC registers. The device integrates a low-noise digital phase frequency detector (PFD) supporting frequencies up to 130 MHz and a precision charge pump. It operates on a 2.7 V to 3.45 V analog supply and a 1.8 V to 2 V digital supply. Key features include cycle slip reduction for faster lock times, programmable FSK/PSK modulation, and sawtooth/triangular ramp generation.

Feature Summary

• RF bandwidth extending to 13.5 GHz with a 25-bit fixed modulus for subhertz resolution
• Integrated high-speed and low-speed FMCW ramp generation with dual sweep rates
• Direct modulation support for Frequency Shift Keying (FSK) and Phase Shift Keying (PSK)
• Cycle slip reduction circuitry enables faster lock times without loop filter modifications

Applications

• FMCW radar systems
• Communications test equipment
• Communications infrastructure

Procurement Notes

Verify the specific package marking and lot date code against the manufacturer's ordering guide to ensure authenticity. Confirm that the exposed pad connection requirements are met during assembly to maintain thermal performance and electrical grounding as specified in the datasheet.

Selection Notes

Select this component when designing systems requiring precise frequency synthesis up to 13.5 GHz with integrated modulation capabilities. Ensure the external voltage-controlled oscillator (VCO) can handle the required output power and that the reference input frequency aligns with the programmable R-divider range of 10 MHz to 260 MHz.

Part Context

The ADF4169 belongs to Analog Devices' family of high-performance PLL frequency synthesizers designed for RF applications. It succeeds earlier models by offering higher PFD frequencies and integrated waveform generation, reducing the need for external function generators in radar and communication test setups.

Replacement Considerations

Public confirmed substitute part numbers: None.