Analog Devices AD6622 Manuals

The AD6622 is a four-channel, 75 MSPS digital transmit signal processor (TSP) from Analog Devices that offers wideband digital IF parallel output, wideband digital IF parallel input, allows cascading of chips for additional channels, programmable IF and modulation, programmable interpolating RAM coefficient filter, high-speed CIC interpolating filter, NCO frequency translation, worst spur better than 100 dBc, tuning resolution better than 0.02 Hz, real or complex outputs, digital summation of channels, clipped or wrapped overrange, two’s complement or offset binary output, separate 3-wire serial data input for each channel, microprocessor control, JTAG boundary scan and other features.

Analog Devices introduces the latest in Direct IF Sampling (DIFS) and Direct Digital Synthesis (DDS) technology to reduce the cost, size, and power of traditional multicarrier radios. Finally, the dynamic range barriers in converter technology have been overcome to permit an entire 25 MHz spectrum to be digitally processed. Incremental RF carriers are easily added (or reprogrammed) for most air interface standards.

This document introduces the features and characteristics of AD6622 four-channel 75 MSPS digital transmit signal processor (TSP).