The channel tag is a useless meta-tag: this tag does not add any useful meaning by itself, it requires other tags to provide context. That's not how our tags are supposed to be used.
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There is no channel tag wiki to define what a "channel" is. In fact the word channel has different technical meanings in several different contexts, as can be seen from the wide variety of questions tagged channel
- In a MOSFET, the channel is a physical region between drain and source, where conduction happens
- In an ADC (Analog to Digital Converter), a channel is an input signal path
- In a DAC (Digital to Analog Converter), a channel is an output signal path
- Op amps, multiplexers, etc. sometimes the word channel is used to name a signal path
- A band of frequencies in a modulated radio communications spectrum may be divided into sub-units called channels (frequency division multiplexing, time division multiplexing, etc.)
- A baseband communications signal path may also be called a communications channel
- The term "channel interleaving" is seen in DRAM memory architecture
- Sometimes sales/marketing refers to the "distribution channel" i.e. selling parts through a 3rd party distributor like Avnet/Digikey/Farnell/Mouser/Newark
- When I saw the instagram photo of the Ever Given lodged in the Suez at an acute angle, I needed to channel my frustration into something productive (sorry, I couldn't resist)
As usual for mass tag edits, we should edit only a few at a time to avoid spamming the "active questions" feed. I'll hold off doing anything until I get some feedback from the meta channel...