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Hi,
I have 2 questions about decimation filter for a SD ADC. Firstly, how is the relationship between SNR and stopband attenuation for decimation filter. For example if I have 14 bits output of the decimation filter, SNR=(6.02*N+1.76)=86 db, so will I choose stopband attenuation >86 db for...
well, I can generalize my question
I want to design a decimation filter for a Sigma-Delta modulator. The modulator input is 20Khz sinus signal. And this signal is oversampled to 2.5Mhz. So decimation ratio is about 64. First I designed a CIC filter which has a decimation ratio of 16. After a...
Hi,
I have a simple question, I'm designing an FIR filter, I want to see the frequency response of that filter, sampling rate is 80 Khz
b=remez(11,[0 0.49 0.83 1],[1 1 0 0]);
Fs=80000;
[H, f] = freqz(b, 1, 512, Fs);
mag = 20*log10(abs(H));
plot(f, mag)
My question is that when I plot this...
Hi,
I want to design a CIC filter which has a decimation ratio of 32, I need 10 bits at the output, and my input is 2 bits, I want 3 stages and differential delay is 1 so according to Hogenauer's paper wordlength is N*log(RM)+Bin -1=3*log(32)+2=16 bits, however I want 10 bits at the output, and...
how to calculate kn in mos model
I must use Id=k'*W/L*(VGT*Vmin-Vmin2/2)*(1+lambda*Vds) formula for hand analysis Vmin=min(VGT,Vds,VDSAT) VGT=VGS-VT does anybody know a possible way to find k' and VDSAT correctly
mosfet vdsat
unfourtanetly not +-%5 variations in my results, for ex spice result is 733u my hand calculation is 1.6m so they are quite different, is there any mistake for Mn or VDSAT. i use Mn=U0 and VDSAT=VSAT*L/U0
vdsat mosfet
hi, i want to calculate MOSFET's drain current with hand calculation equations but i must use spice parameters. the problem is spice results and hand calculations are quite different from each other, it is a short channel mosfet (L=0.25 micron) and i calculate kn' and VDSAT wrongly...
hi I have a project, I must calculate traffic density on a bridge using sensors i thought i can use infrared sensors for sensing the vehicles, one sensor on the start of the bridge and one sensor on the end of the bridge i can calculate the number of vehicles on the bridge at instant time but i...
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