Analog Devices AD6633 Manuals

Analog Devices AD6633 Multichannel Digital Upconverter Handbook

The AD6633 is a multichannel, wide‑bandwidth digital upconverter (DUC) that processes 20‑bit complex baseband input data and generates 18‑bit real or complex IF output up to 125 MS/s. It includes a VersaCREST crest‑reduction engine that lowers power‑amplifier demands, making it suitable for cellular base stations, broadband wireless access, and software‑defined radios.

Each channel provides a 32‑bit NCO, programmable RAM coefficient FIR filters, a fifth‑order CIC filter, and optional half‑band FIR stages. The device operates from a 3.3 V I/O supply and a 1.8 V core supply, with typical power consumption of 75 mW per channel (1.4 W total). Control registers are programmed via a generic 16‑bit microprocessor interface or SPI/SPORT‑compatible serial port.