ADF4350 is a wideband synthesizer with an integrated VCO. It features programmable fractional-N and integer-N synthesizers, low phase noise VCO, programmable prescaler, programmable output power level, etc.
The ADF4350 wideband synthesizer integrates a voltage‑controlled oscillator (VCO) and supports both fractional‑N and integer‑N PLL operation. It provides an output frequency range from 137.5 MHz to 4.4 GHz, low phase‑noise performance, programmable output power, and an RF mute function controllable by pin or software. The device is powered from a 3.0 V‑3.6 V supply and can be configured via a simple 3‑wire serial interface.
Typical applications include wireless infrastructure (W‑CDMA, TD‑SCDMA, WiMAX, GSM, PCS, DCS, DECT), test equipment, wireless LANs, CATV equipment and clock generation. The datasheet details functional block diagrams, pin configurations, timing characteristics, absolute maximum ratings, and performance graphs to aid designers in PCB layout and system integration.
| Output frequency range | 137.5 MHz to 4400 MHz |
|---|---|
| Power supply voltage | 3.0 V to 3.6 V |
| Typical rms jitter | <0.4 ps rms |
| Operating temperature range | −40 °C to +85 °C |
| Phase‑noise (10 kHz offset, 2.2 GHz carrier) | ‑89 dBc/Hz |
| Maximum VCO output frequency | 4400 MHz |
The device can generate frequencies from 137.5 MHz up to 4.4 GHz.
It operates from a 3.0 V to 3.6 V power supply.
The part is offered in a 32‑lead lead‑frame chip‑scale package.
Typical rms jitter is less than 0.4 ps.