Hi!
I want to read the output data of a delta-sigma modulation based ADC (AD7402) using NI LabVIEW.
Can you help me by explaining what the Verilog code in the datasheet (page 17) does?
Hi!
I want to read the output data of a delta-sigma modulation based ADC (AD7402) using NI LabVIEW.
Can you help me by explaining what the Verilog code in the datasheet (page 17) does?
In reply to Norbert96:
From page 16:
The output of the AD7402 is a continuous digital bit stream. To reconstruct the original input signal information, this output bit stream needs to be digitally filtered and decimated. A sinc filter is recommended due to its simplicity. A sinc3 filter is recommended because it is one order higher than that of the AD7402 modulator, which is a second-order modulator.
and the Verilog implementation of that filter is given on pages 17 and 18. Whenever signal data_en is asserted the consumer can read the DATA signal.