For example: if VREFH is 1.8V and CSCALE = 0, then the ADC input voltage can be up to 3.84V because 1.8*(64/30) =3.84. Consequently, the value that will be in your ADC value can be obtain of the next formula: To obtain more information you can see the chapter 87.6.1.3 called ...
The readout chip makes use of a Sigma-Delta-based ADC with a sample rate of 2 MS/s. The digital bitstream is decimated by averaging a specific number of bits, which returns to the concept of over-sampled data converters. By choosing the decimation factor, there will be a trade-off b...
For example: if VREFH is 1.8V and CSCALE = 0, then the ADC input voltage can be up to 3.84V because 1.8*(64/30) =3.84. Consequently, the value that will be in your ADC value can be obtain of the next formula: To obtain more information you can see the chapter...
ADC start time, ADC sample time and the excess time) since it is thesum of Idle Time and the Ramp End Timeas I referred to in the TI chirp reference figure in my previous message. (Please let me know if there is any other time delay I should...
May be lost of translation (sorry for my English). Here 4 points: 1. When we resample, signal always have energy in passband ("...one half of the lower of the old and new sampling rates..."). 2. Analog filters used in ADC and DAC for any sample rate for both PCM and DSD. Ot...
i i n i i i ADC n n n g g g D g D , along the gradient direction into the spherical harmonic transform formula ()() ( ) = ππ θθ θ θ 2 00 sin , , * d 1 = = , * m l Y is the spherical harmonics and the superscript * denotes complex conjugation. In the ...
And the formula doesn't take into account filtering out the noise from the oversampling. Little example: For 2 times upsampled band, power noise in band equal half old (low) sample rate has 2 time less power (-3 dB). Before upsampling: ...
Bin edges are logarithmically spaced in \(\Delta\)t, and linearly in ADC (\({501 \times 16384}\) edges). Detail views are shown for regions A and B. Region C contains only 60 counts in the rightmost \(\Delta\)t bin, [5.5,5.6] ms. Full size image A major issue when employing ...
Refer to Section 3.2: Absolute maximum ratings for maximum input current for reliability requirements. 13. Positive and negative dynamic current injection pulses are allowed up to this limit, with different specifications for I/O, ADC accuracy and analog input. Refer to the dedicated chapters for ...
Not doing so will degrade the dynamic range in the frequency range of interest available from the ADC. For a 16-bit system, remembering that SNR=6.02n +1.76 dB, we require an SNR of around 98 dB. At the 18-bit level, this requires 110dB dynamic range. What this implies is that the...