The ADF4156 is a 6.2 GHz fractional-N frequency synthesizer that implements local oscillators in mobile radio base stations, wireless handsets, wireless LANs, and communications test equipment.
The ADF4156 is a 6.2 GHz fractional‑N frequency synthesizer that integrates a low‑noise phase‑frequency detector, programmable charge‑pump, and a 3‑wire serial interface for register control. It offers programmable RF output phase, cycle‑slip reduction for fast lock, and a low‑power sleep mode.
Typical applications include CATV equipment, mobile base stations, wireless handsets, WLANs, and test equipment. The device operates from 2.7 V to 3.3 V, supports RF input frequencies up to 6.2 GHz, and is rated for industrial temperature ranges (‑40 °C to +85 °C).
| RF Input Frequency | 0.5 GHz – 6.2 GHz |
|---|---|
| Supply Voltage (AVDD) | 2.7 V to 3.3 V |
| Phase Detector Frequency | 32 MHz max |
| Charge‑Pump High Current | 5 mA typ |
| Low Power Sleep Mode Current | 1 pA typ |
| Operating Temperature Range | ‑40 °C to +85 °C |
The device operates from 2.7 V to 3.3 V.
The ADF4156 can accept RF input frequencies up to 6.2 GHz.
All on‑chip registers are controlled via a simple 3‑wire serial interface.