AD8347 is a 0.8GHz to 2.7GHz direct conversion quadrature demodulator, integrated with RF and baseband AGC amplifiers
The AD8347 provides a direct‑conversion quadrature demodulation solution for wireless base stations, RF instrumentation, satellite modems and other communications receivers. It integrates RF and baseband automatic gain‑control (AGC) amplifiers, a high‑accuracy phase splitter, and ADC‑compatible I/Q outputs in a single 28‑lead TSSOP package.
Key features include a 69.5 dB AGC gain range, low LO drive (‑8 dBm), single‑supply operation from 2.7 V to 5.5 V, and a noise figure of 11 dB at maximum gain. The device supports LO/RF frequencies from 0.8 GHz to 2.7 GHz and offers programmable gain control via a VGIN pin.
| LO/RF Frequency Range | 0.8 – 2.7 GHz |
|---|---|
| AGC Gain Range | 69.5 dB |
| Supply Voltage (V_S) | 2.7 – 5.5 V |
| Operating Temperature Range | –40 °C to +85 °C |
| Noise Figure (max gain) | 11 dB |
The AD8347 operates from 0.8 GHz to 2.7 GHz.
The AGC gain can be adjusted over a 69.5 dB range.
It runs from a single supply of 2.7 V to 5.5 V.
The noise figure is 11 dB at maximum gain.