ADF4158CCPZ

Overview

The ADF4158CCPZ is a 6.1 GHz fractional-N frequency synthesizer with direct modulation and waveform generation capabilities, manufactured by Analog Devices Inc. It features a 25-bit fixed modulus enabling subhertz frequency resolution at maximum RF frequencies. The device integrates a low-noise digital phase frequency detector (PFD), precision charge pump, and programmable reference divider. Operating on a 2.7 V to 3.3 V supply, it supports FSK and PSK modulation alongside various frequency sweep modes including sawtooth, triangular, and parabolic waveforms. Key performance metrics include a normalized phase noise floor of -216 dBc/Hz and a PFD frequency up to 32 MHz.

Feature Summary

• RF bandwidth extending to 6.1 GHz with 25-bit fixed modulus for subhertz resolution
• Integrated direct modulation supporting Frequency Shift Keying (FSK) and Phase Shift Keying (PSK)
• On-chip waveform generation for sawtooth, triangular, and parabolic ramps with superimposed FSK capability
• Cycle slip reduction circuitry designed to accelerate lock times without loop filter modifications

Applications

• Frequency modulated continuous wave (FMCW) radar systems
• Communications test equipment
• Automotive applications requiring qualified components

Procurement Notes

Verify the specific suffix 'CCPZ' against the manufacturer's current ordering guide to confirm package type and temperature range specifications. Ensure compatibility with the 24-LFCSP exposed pad footprint during PCB layout. Confirm that the component meets the required automotive qualification standards if deployed in vehicle electronics.

Selection Notes

Select this component when designs require high-frequency synthesis up to 6.1 GHz combined with precise waveform generation. The 25-bit modulus is critical for applications demanding fine frequency steps. Consider the separate VP pin requirement if the voltage-controlled oscillator requires a tuning voltage exceeding the standard 3.3 V logic supply.

Part Context

The ADF4158 belongs to Analog Devices' family of fractional-N PLL frequency synthesizers. It shares architectural similarities with the ADF4159 but operates at a lower maximum RF frequency of 6.1 GHz compared to the 13 GHz capability of the ADF4159. Both devices utilize a 25-bit modulus and support similar modulation techniques.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult the official Analog Devices cross-reference tools or contact technical support directly for validated replacement options.