The HSP50215 Digital UpConverter (DUC) is a QASK/FM modulator/FDM upconverter designed for high dynamic range applications such as cellular basestations. The DUC combines shaping and interpolation filters, a complex modulator, and Timing and Carrier NCO’s into a single package. Each DUC can create a single FDM channel. Multiple DUC’s can be cascaded digitally for multi-channel applications.

Features
• Output Sample Rates Up to 52 MSPS (48 MSPS Industrial); Input Data Rates Up to 3.25 MSPS
• I/Q Vector, FM, and Shaped FM Modulation Formats
• 32-Bit Programmable Carrier NCO; 30-Bit Programmable Symbol Timing NCO
• Programmable I and Q, 256 Tap, Shaping FIR Filters with Interpolation by 4, 8 or 16
• Interpolation Filter Up Samples Shaping Filter Output to Output Sample Rate Under NCO Control
• Processing Capable of >90dB SFDR
• Cascade Input for Multiple Channel Transmissions
• 16-Bit µProcessor Interface for Configuration and User Data Input

Applications
• Single or Multiple Channel Digital Software Radio Transmitters (Wide-Band or Narrow-Band)
• Base Station Transceivers
• Operates with HSP50214 in Software Radio Solutions
• Compatible with the HI5741 D/A Converter
• HSP50215EVAL Evaluation Board Available