In order to recover the analog signal more accurately, the resolution must be increased. Resolution:When the analog signal is quantized, it is represented by a finite discrete voltage level, and the resolution is the number of discrete levels used to represent the signal. The relationship between ENOB and SINAD is: See also: Signal to Noise + Distortion Ratio (SINAD). As fIN increases, the overall noise (especially the distortion component) will increase, thus reducing ENOB and SINAD performance. For dBm, the load resistance in the specification must be known (eg, 1mW is supplied to 50Ω) to determine the equivalent voltage or current value.Įffective Number of Bits (ENOB): The test indicator (bit) of the analog-to-digital converter (ADC) associated with the input frequency fIN. dBc is the dB value relative to a carrier signal dBm is the dB value relative to 1 mW. For voltage values, dB is given in 20 log (VA/VB) for power values, given in 10 log (PA/PB). The terminology comments in this calculator are given below.ĭecibel (dB):A unit of magnitude defined by logarithm.
0 Comments
Leave a Reply. |