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I'm finding out the information of the internal memory (SRAM) size inside an SoC. Actually, any SoC is fine, it can be Qualcomm's snapdragon, Apple A5, TI OMAP, and things like that. Any body who knows how many Bytes of memory such SoCs have? I could find this information from the googling.
I have a flash ADC with +/-2v input range.
In general, the total harmonic distortion (THD) is measured as:
input x(t)=2*sin(wt) is applied to the ADC, and output y(t) is measured. Then THD is calculated from y(t) as
THD(V/V) = (v_s)^2 / {(v_xh1)^2 + (v_xh2)^2 + ...} (eq.1)
where v_s...
Lets' assume an ADC exhibits its own quantization noise and phase noise from clock jitter on its spectrum.
In general, the quantization noise is a white noise, and the phase noise from a jitter shows two types of noise: close-in phase noise and white phase noise.
Here is a question, can we set...
Thanks, SunnySkyguy. i assumed there is no additional circuitry to enhance incoherent condition.. basically, i intend to make the incoherent condition due to some special reason.. so i need to confirm the condition i gave can keep incoherent relation, without any additional activity (ex. pll as...
coherent sampling relation is as follows:
N/fs = M/f0
where N: # of samples, fs: sampling speed in Hz, M: the integer number of cycles in sampled data, f0: sine frequency.
Here is a question. Let's assume M is changed to non-integer, and fs is accordingly calculated again to satisfy the above...
The following represents some part of my equation, which describes sine functions in discrete domain.
y[n] = sin(2*pi*f0*n*dTs) * sin(2*pi*f0*n*Ts)
where f0 is the frequency of sine, and n variable is an integer number, n=[1:N] (e.g., N=64k).
dTs and Ts are sampling periods and they have the...
Theoretically.. for ADC performance, it is known that ADC resolution (ENOB) gives major impact on the noise performance (SNR), by the relationship: SNR = 6.02*ENOB + 1.67dB.
Again theoretically, what ADC spec (or parameter) mainly causes ADC harmonic distortion (THD) performance?
In addition...
I apologize for unclear notation in my previous question; '*' in my question meant a convolution operator.
Basically, my original question was ...
In your previous equations, the laplace transform of the following equation (a) has been taken, and it results in equation (b).
> a(1) x(t) + a(2)...
my questions is about the relationship between polynomial modeling and transfer function for circuit.
As well known, the transfer function h(t) for LTI system has the relationship between input x(t) and output y(t):
y(t) = x(t) * h(t) ----- eq(1)
where * is convolution operation.
Then, a...
my questions is about the relationship between polynomial modeling and transfer function.
As well known, the transfer function h(t) for LTI system has the relationship between input x(t) and output y(t):
y(t) = x(t) * h(t) ----- eq(1)
where * is convolution operation.
Then, a...
dillikumar406, Thanks a lot for deriving.
From your following derivation to convert sin to sinc function, I'm just wondering the reason to use un-normalized sinc function (which is sinc(x) = sin(x)/x), instead of using normalized sinc (=sin(x pi)/(x pi)).
=A {T/2{[sin(w-w0)T/2]/T/2(w-w0)}+...
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