Positive emitter-coupled logic
Positive emitter-coupled logic, or PECL for short, is a way of building electronic circuits that allows them to work very fast and very reliably.
Think of it like a big train station, where lots of trains come in and out carrying important cargo. In order for all the trains to get where they need to go without crashing into each other, we need a system of signals and switches that control their movements.
In the same way, electronic circuits need a way to control the flow of electricity through them. PECL does this by using two transistors, which are like tiny electronic switches. These are connected in a way that allows them to turn on and off very quickly, like a light switch turning a light on and off.
One transistor is called the "emitter" and the other is called the "collector". They are connected together in a way that causes them to work together, kind of like a team. When one transistor turns on, it sends a signal to the other one to turn on as well.
This allows the circuit to work very quickly, because both transistors are turning on and off at the same time. It also makes the circuit very reliable, because if one transistor fails, the other one will take over and keep things running smoothly.
So in summary, PECL is a way of building electronic circuits that uses two transistors working together to control the flow of electricity. This allows the circuits to work quickly and reliably, like a well-organized train station.
Think of it like a big train station, where lots of trains come in and out carrying important cargo. In order for all the trains to get where they need to go without crashing into each other, we need a system of signals and switches that control their movements.
In the same way, electronic circuits need a way to control the flow of electricity through them. PECL does this by using two transistors, which are like tiny electronic switches. These are connected in a way that allows them to turn on and off very quickly, like a light switch turning a light on and off.
One transistor is called the "emitter" and the other is called the "collector". They are connected together in a way that causes them to work together, kind of like a team. When one transistor turns on, it sends a signal to the other one to turn on as well.
This allows the circuit to work very quickly, because both transistors are turning on and off at the same time. It also makes the circuit very reliable, because if one transistor fails, the other one will take over and keep things running smoothly.
So in summary, PECL is a way of building electronic circuits that uses two transistors working together to control the flow of electricity. This allows the circuits to work quickly and reliably, like a well-organized train station.