AD6655 Rev. 0 is a diversity receiver with high SNR and high dynamic range. It supports multiple sampling rates and input ranges, suitable for applications such as communications.
The AD6655 is a mixed‑signal intermediate‑frequency (IF) receiver that integrates dual 14‑bit ADCs capable of up to 150 MSPS sampling and supports IF frequencies up to 450 MHz. It includes a wideband digital downconverter, a 32‑bit complex NCO, half‑band and FIR filters, and offers flexible analog input ranges and multiple output modes (CMOS and LVDS). The device is designed for communications applications such as diversity radio systems, multimode digital receivers, and software‑defined radios.
The handbook details the functional block diagram, pin configurations, power‑supply options, and extensive electrical specifications. It also covers programming via a 3‑bit SPI interface, fast over‑range detection, signal‑monitor features, and provides design guidelines, evaluation board information, and an ordering guide for the 64‑lead LFCSP package.
| Maximum Sample Rate | 150 MSPS |
|---|---|
| IF Sampling Frequency | 450 MHz |
| Signal‑to‑Noise Ratio (70 MHz) | 74.5 dBc |
| Spurious‑Free Dynamic Range (70 MHz) | 80 dBc |
| Supply Voltage (CMOS Output) | 1.8 V to 3.3 V |
| Supply Voltage (LVDS Output) | 1.8 V |
| Power Consumption (DC Input, typical) | 470 mW |
| Standby Power | 52 mW |
| Power‑Down Power | 2.5 mW |
The AD6655 can sample at rates up to 150 MSPS.
The device supports 1.8 V to 3.3 V CMOS output or a 1.8 V LVDS output.
The SNR is 74.5 dBc at 70 MHz.
In power‑down mode the AD6655 consumes between 2.5 mW and 8 mW.