The ADF41020 frequency synthesizer can be used to implement local oscillators as high as 18 GHz in the up-conversion and down-conversion sections of wireless receivers and transmitters. It consists of a low noise, digital phase frequency detector (PFD), a precision charge pump, a programmable dual-modulus prescaler, programmable charge pump currents, and 3-wire serial interface.
The ADF41020 frequency synthesizer supports up to 18 GHz RF input and includes a low‑noise phase‑frequency detector, programmable charge pump, and dual‑modulus prescaler. It can be used with external loop filters and VCOs for up‑conversion and down‑conversion in wireless receivers and transmitters.
The datasheet provides detailed specifications, pin configurations, timing characteristics, absolute maximum ratings, and typical performance graphs, along with handling and ESD precautions for designers.
| RF Input Frequency | 4.0 – 18.0 GHz |
|---|---|
| RF Input Sensitivity | -10 to +10 dBm |
| Digital Power Supply (DVpp) | 2.7 – 3.3 V |
| Charge Pump High Current | 5.0 mA |
| Operating Temperature Range (Industrial) | -40 °C to +85 °C |
The device supports RF input frequencies up to 18 GHz.
The device is rated for industrial temperatures from –40 °C to +85 °C.