DC-02 · Chapter 3 · Filters, Sampling & Data Converters
Anti-aliasing filter
Why do you put an RC filter in front of an ADC? What are the trade-offs? Why is audio sampled at 44.1 kHz and not 40 kHz?
| Level | ●● onsite technical |
| Track | General board |
| Really testing | Nyquist in practice and the dual role of the ADC input cap. |
Full worked answer: in the book, page 70 — what to say first, how to explain it, the numbers worth quoting and the follow-ups. About the book →
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