This part is a kind of semiconductor called ADF4158.

Function of this product has Direct Modulation/Waveform Generating 6.1 GHz Fractional-N Frequency Synthesizer.

Manufacturers : Analog Devices

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Some of the text within the PDF file :

Data Sheet Direct Modulation/Waveform Generating, 6.1 GHz Fractional-N Frequency Synthesizer ADF4158 FEATURES GENERAL DESCRIPTION Radio frequency (RF) bandwidth to 6.1 GHz 25-bit fixed modulus allows subhertz frequency resolution Frequency and phase modulation capability Sawtooth and triangular waveforms in the frequency domain Parabolic ramp Ramp superimposed with FSK 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 APPLICATIONS The ADF4158 is a 6.1 GHz fractional-N frequ [ ... ]

ADF4158 PDF Datasheet Download