Equation 3 · Part 6 · How Edge AI Electronics and Sensor Systems Actually Work
subscript
subscript
What this part means
The lower label selects a particular version, component, or indexed member of the quantity. For example, x₀ and xₜ can be values at different positions.
Its job in the formula
A subscript distinguishes a version, component, step, or member of a quantity. It does not automatically mean multiplication.
Full expression→subscript→Article meaning
The passage around this formula
The quantization step itself has a clean expression once gain and reference voltage are fixed. For an ADC with N effective bits resolving a full-scale reference voltage , the size of one quantization step is . and, treating quantization error as uniformly distributed over one step, the resulting quantization noise power has a root-mean-square value of q / . This is the textbook derivation behind every “effective number of bits” figure a converter data sheet reports, and it is the reason oversampling helps: spreading the same quantization noise power across a wider sampled bandwidth before filtering it back down effectively lowers the in-band noise floor…
Learn the underlying idea
A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.
Open the illustrated subscripts: which member of a family? guide →
Sources cited in the article section
- [5] ADS1298: Low-Power, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements ↗
- [3] AD7124-8: 8-Channel, Low Noise, Low Power, 24-Bit, Sigma-Delta ADC ↗
These citations provide research context; check each source for the exact claim it supports.