The AD6623 is a 4-channel, 104 MSPS digital transmit signal processor (TSP). It features 18-bit parallel digital IF output in real or interleaved complex format. It also supports 18-bit bidirectional parallel digital IF input/output and allows cascading of multiple chips for additional channels.
The AD6623 is a 4‑channel, 104 MSPS Digital Transmit Signal Processor (TSP) that generates high‑bandwidth data for transmit DACs. It integrates programmable RAM coefficient filters, interpolating CIC filters, a numerically controlled oscillator, and power‑ramp blocks, supporting real or complex outputs and a variety of modulation schemes.
The document provides functional block diagrams, recommended operating conditions, electrical characteristics, timing specifications, package options (128‑lead MQFP and 196‑lead CSPBGA), thermal data, and ordering information. It also outlines microprocessor port interfaces, JTAG, and serial data port configurations for both Intel and Motorola bus modes.
| Number of channels | 4 |
|---|---|
| Maximum sample rate | 104 MSPS |
| Core supply voltage | 2.5 V |
| I/O supply voltage | 3.3 V |
| Input voltage tolerance | 5 V tolerant |
| Power dissipation (GSM example) | 740 mW |
| Operating temperature range | –40 °C to +85 °C |
The AD6623 provides four independent digital transmit channels.
It operates at up to 104 MSPS.
Yes, it is pin compatible with the AD6622.