# Tag Info

Accepted

### Compute SQNR (Signal to Quantization Noise Ratio)

The signal voltage is a sinusoid signal variant from $-V$ to $+V$, thus the RMS value $$V_{rms} = \frac{V}{\sqrt{2}} = \frac{2^N \Delta V / 2}{\sqrt{2}}$$ because $2V = 2^N\Delta V$ where $\Delta V$ ...
• 6,595
Accepted

### Quantization SNR of sine wave doesn't match 1.761 + 6.02 * Q

Some issues here: Your SNR formula only applies to full scale sine waves, your sine wave has -6dB amplitude so your SNR will be 6 dB lower The formula also implies rounding, not truncation, that's ...
• 44.7k

### Precise 5th and 7th harmonics of a sampled sine wave

This answer discusses the harmonic spectra of the quantized sequence in five cases: limit $f/f_s \to 0$, synchronous sampling of a cosine with rational $f/f_s$, synchronous sampling of a sinusoid of ...
• 13.5k

### Quantization SNR of sine wave doesn't match 1.761 + 6.02 * Q

I was doing quite a bit wrong, but the key thing that I was missing was the fact that the SNR needs to be calculated over the whole Nyquist spectrum instead of only looking at the peaks. This article ...
• 522
Accepted

### confusion sampling vs quantization?

Sampling is the process of making the x-axis (time) discrete and quantization is the process of making the y-axis (magnitude) discrete. You can sample without quantization (such as done with an ...
• 51.4k
Accepted

### Signal to Quantization Noise ratio concept

Give me an A! Give me a D! Give me a converter! What have we got? An A/D converter! Go Team! Let $X$ denote a standard Gaussian random variable with pdf $\phi(x)$ and complementary CDF $Q(x)$. Let $Y$ ...
• 20.4k
Accepted

• 15.3k

### Precise 5th and 7th harmonics of a sampled sine wave

The harmonics will be in the range of -150dB to -170dB. The exact value will depend on exact frequency, phase relationship to sampling frequency, phase locked or unlocked, rate of phase drift, ...
• 44.7k