Analog Devices ADF4158 Manuals

This data sheet introduces the ADF4158, a 6.1 GHz, fractional-N frequency synthesizer with a 25-bit fixed modulus that allows subhertz frequency resolution, frequency and phase modulation capability, sawtooth and triangular waveforms in the frequency domain, parabolic ramp, superimposed FSK ramp, ramp with 2 different sweep rates, ramp delay, ramp frequency readback, ramp interruption, 2.7 V to 3.3 V power supply, separate VP allows extended tuning voltage, programmable charge pump currents, 3-wire serial interface, digital lock detect, power-down mode, cycle slip reduction for faster lock times, switched bandwidth fast-lock mode, qualified for automotive applications.

The ADF4158 is a 6.1 GHz fractional-N frequency synthesizer with an RF bandwidth up to 6.1 GHz. It features a 25-bit fixed modulus that allows subhertz frequency resolution. In addition to frequency synthesis, it also has frequency and phase modulation capability, as well as the ability to generate sawtooth and triangular waveforms in the frequency domain. Furthermore, it has functions such as parabolic ramp, ramp superimposed with FSK, ramp with 2 different sweep rates, ramp delay, ramp frequency readback, and ramp interruption. The product is suitable for applications such as FMCW radar and communications test equipment, and it is qualified for automotive applications.