FC203A

FC203A Module is an efficient implementation of a ‘Power Spectrum Extraction/Exchange FPGA core’ via a general table chop/swap operation, specifically designed for use in front of the FC203B Power Spectrum Interleave module. Estimation of the power spectrum of a digital signal, can be used to generate an error signal to tune an FIR filter, as an example.

A control word defines how many input samples are to be passed through to the output, and the low-order half of those samples are passed to one output while the high-order samples are passed to the second output. The high/low division may optionally be exchanged by asserting a bit in the control word. As standard the core is shipped as a 3L Diamond FPGA task but it can be also provided as a pure VHDL core. In order for this core to be used within a Diamond/FPGA system, the I/O interfaces are standardized to the model described by Diamond as shown bellow.

FC203A fig1

Table below shows Performance Estimates and Resource Utilization for FC203A with respect to some Sundance modules using specific Xilinx devices:
FC203A fig2

FC203A Control Word table:

FC203A fig3

As standard the core is shipped as a 3L Diamond FPGA task but it can be also provided as a pure VHDL core. In order for this core to be used within a Diamond/FPGA system, the I/O interfaces are standardized to the model described by Diamond.