Hello,
I am new to Data acquisition design so please be patient with me.
Can somebody please confirm the folowing questions about the following chip
- CS5340 (Audio, analog to digital converter)
CS5340:
a. It has a sampling rate of 192KHz. Am I right, If I say that the maximum input frequency this chip can sample is 96KHz?
b.The chip generates 24 bit values for both left and right inputs at sample rates of 200 kHz per channel. Am I right to say that through put rate will be
24 bits x 200KHz = 4.8 M bits / sec and for two channels it will be 9.6 M bits / sec .c. Dynamic range is equal to 101 db at 5V? Resolution is 24 bits. I am using the following formula
Dynamic Range = 20 x log ( 2^n - 1 )
But the result is 144 db. How did they get 101 db? And how can I interpret the dynamic range result? Plus what exactly is dynamic range?
d. Am I right, if I calculate the Signal to Noise ratio as follows
S/N = 6.02 X 24 + 1.76 = 146.24 db, Is this a good S/N ratio value? Is it true, higher the DB better the SNR?
e. Total Harmonic Distortion is -94 db . Is it good?
f. The input signal is Neuron Action Potential or Low frequency Potential. So, I was wondering that how many samples can I get with the sampling rate of
192Khz and 96 KHz per cycle?g. Am I right, If I say that the value of 1 LSB = (5.95) / (2^ 24) =
0.35 micro Volts.h. can anyone suggest the pin to pin compatiable part for the cirruslogic part number CS5333?
i. I was unable to get the value of offset error voltage of this chip from the data sheet. What is the output offset voltage error?
The CS5340 will be interfaced to intan chip (RHA1016). The data sheet of the Intan chip is as follows
The chip has a multiplexer that has the maximum switching frequency of
500kHz. The data sheet also mentions that the 16 channels can be sampled at30 ksamples / sec per channel. The ADC is sampling at 192kHz, the max.input signal frequency is 8kHz and be present at all the 16 channels.
I have following questions
- I want to go through all the sixteen channels at the frequency of
all 16 channels.Now, Each channel can be sample at 30K samples / sec or equal to 33 micro secs. The ADC will sample at 192 KHz or 5.2 micro secs. SO, Does it
mean that I can take approximately 6 or 7 samples of the input signal per channel at 192kHz. I am unable to deisgn and calculate this part of the system?
Best, John