From the course: Electronics Foundations: Basic Circuits
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Bandwidth and square waves
From the course: Electronics Foundations: Basic Circuits
Bandwidth and square waves
- [Instructor] One of the main reasons for thinking about signals in the frequency domain is to consider the signal's bandwidth, which is the range of frequencies that make it up. The term bandwidth can also refer to the range of frequencies that can be transmitted through a circuit. In some cases, a circuit might be intentionally designed as a filter to limit a signal's bandwidth by removing certain frequencies from the signal while allowing others to pass through. In other cases, the bandwidth of a signal might be naturally limited by physical characteristics of the circuit it's passing through. Bandwidth is typically measured in hertz, and it represents the difference in hertz between the upper and lower frequencies within a range. To understand why it's important to consider the bandwidth of any circuit that'll transmit a signal, let's take a closer look at the frequency components that make up one of the most common types…
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