Eminent.Engineer
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Hello Everyone
I am working on Delta Sigma ADCs in MATLAB, to equalize the amplitude of input and output I have to multiply the output by a scaling factor, anyone who has experience of ADC (using or working on ADCs) share the reason for this scaling ? and Secondly the SNR after Delta Sigma Modulator ~66 dB and after Decimation it drops to ~50dB (using a very high order approx. 3k taps FIR LPF), Reason for this too much decrease in SNR ?
Thanks in advance.
I am working on Delta Sigma ADCs in MATLAB, to equalize the amplitude of input and output I have to multiply the output by a scaling factor, anyone who has experience of ADC (using or working on ADCs) share the reason for this scaling ? and Secondly the SNR after Delta Sigma Modulator ~66 dB and after Decimation it drops to ~50dB (using a very high order approx. 3k taps FIR LPF), Reason for this too much decrease in SNR ?
Thanks in advance.