Digital down converter
Block diagram of a digital down converter
A digital down converter , or DDC for short , mixes the digital signal of a highly sampled, analog signal down into the baseband or into an intermediate frequency range . The counterpart is the Digital Up Converter (DUC).
The DDC can be implemented in a field programmable gate array (FPGA), digital signal processor (DSP) or in application-specific integrated circuits (ASIC).
The area of application of a DDC is in the transmission of messages, in base stations and mobile phones and also in the field of measurement technology such as spectrum analyzers .
literature
- Francis Swarts (Ed.): CDMA Techniques for Third Generation Mobile Systems. Kluwer Academics Publisher, Boston 1999, ISBN 0-7923-8360-5 .
- David P. Maxson: The IBOC Handbook. Understanding HD Radio Technology, Focal Press, Oxford 2007, ISBN 978-0-2408084-4-4 .
- Giovanni Emanuele Corazza (Ed.): Digital Satellite Communications. Springer Science + Business Media LLC, New York 2007, ISBN 0-387-25634-2 .
- Bernard E. Keizer, Eugene Strange: Digital Telephony and Network Integration. Springer Science + Business Media, New York 1995, ISBN 978-1-4613-5721-6 .
Web links
- Schematic architecture plan of a DDC
- Digital Down Conversion (DDC) (accessed August 31, 2017)
- The Theory of Digital Down Conversion (accessed August 31, 2017)
- Two Applications of Direct Digital Down Converters in Beam Diagnostics (accessed August 31, 2017)
- DDC (digital down converter) (accessed August 31, 2017)