Digital Down Conversion (DDC) eXpert FPGA DSP Feature for CompuScope PCIe Digitizers
Digital Down Conversion (DDC) is a powerful signal processing technique providing significant real-time data reduction. It is particularly useful for the processing of communications signals that frequently occupy a relatively small band about a high carrier frequency. In addition to shifting this carrier frequency down to a lower IF, the DDC also reduces the output sampling rate. This reduced sampling rate leads to significant in-line data reduction.
The eXpert DDC firmware with the high-speed EON Express Digitizer provides the capability for shifting a radio or modulated signal captured on a single A/D input channel from a carrier frequency between 0 MHz to 1 GHz (at a sampling rate of 3 GS/s) down to a low frequency AC signal (baseband signal, non-demodulated).
eXpert FPGA DSP Features
Shift a Radio or Modulated Signal on 1-CH A/D Input from a Carrier Frequency between 0 MHz to 1 GHz @ 3 GS/s Down to a Low Frequency AC Signal (Baseband Signal, Non-Demodulated)
Selectable Number of Identical 2X Anti-Aliasing may be Applied
NCO Supports a Carrier Frequency Range from 0 to 1 GHz and Generates both the I and Q (Real and Complex) Carrier
Multiple FIR Filter Stages that Allow for Decimating Data in Steps of 16, 32, 64, 128, 256, 512, 1024 and 2048
DDC Operations Drastically Reduces the Overall PCIe Data Streaming Mode Rates to the Host System
Includes PCIe Data Streaming Capability Built In
Requires GaGe Software Development Kit (SDK) for C/C# that Provides Ready-Made Compiled Sample Programs
eXpert FPGA DSP Ordering Information
Digital Down Conversion (DDC) Products and Part Numbers
eXpert Digital Down Conversion (DDC) Firmware Option
NOTE: Requires GaGe C/C# SDK and is compatible for use with the following GaGe Digitizer Model Series sold separately: