Contents
- 1 What is the meaning of input current?
- 2 What is logic input?
- 3 What is IOH and IOL?
- 4 What is input and output current?
- 5 What is high level output current?
- 6 Why is CML faster than LVDS?
- 7 How does logic differ from the current flow?
- 8 Which is the best description of current mode logic?
- 9 How is sink logic connected to source logic?
What is the meaning of input current?
The current that flows when the rated voltage is applied.
What is logic input?
Logic Input blocks generate logic signals depending on the state of external switches or devices that are connected to the logic inputs of a Tesira device.
What is IOH and IOL?
IOL is the current into the pin (sinking) when the pin has a logic level of zero. IOH is the current from the pin (sourcing) when the pin has a logic level of one.
What is CML circuit?
Current mode logic (CML), or source-coupled logic (SCL), is a digital design style used both for logic gates and for board-level digital signalling of digital data .
Is input and output current the same?
The INPUT is what sort of electrical system you need to supply to the adapter (i.e. what your power company supplies). The OUTPUT is what is supplied to your device. Note that he amount of DC electrical power is calculated by multiplying the current by the voltage (P=I·V).
What is input and output current?
Input refers to the amount of energy put into a device, and output refers to the amount of energy that comes out. A device may change the type of energy but not the amount. For example, a light bulb’s input energy is the form of electrical energy, and its output energy is in the form of light and heat.
What is high level output current?
High-level Output Current IOH The current flowing into the output at a specified high- level voltage. The reference points on both the input and output waveforms are the same value which is midway between the maximum low-level input voltage (VILmax) and the minimum high-level input voltage (VIHmin).
Why is CML faster than LVDS?
The CML output transistors are permanently biased in the active region, resulting in the ability for much faster switching than technologies that use saturated transistor operation, such as CMOS or most LVDS implementations.
What is CML output?
The CML output consists of a differential pair with 50Ω collector resistors, as shown in Figure 3. The signal swing is supplied by switching the current in a common-emitter differential pair. In this case the CML output differential swing is 800mV typical and the common mode voltage is (VCC – 0.2V).
How is the input and source logic connected?
The input circuit is connected between the positive power supply side (Vcc) and NPN transistor. For a source logic, a PNP transistor provides a path to voltage for the electrical load. For a PNP transistor circuit to work, it must be connected to a NPN transistor circuit.
How does logic differ from the current flow?
They differ by the type of component used and define the current flow. Logic is defined by the type of components in the circuit. Logic defines current flow in the circuit. Whatever logic you use for the output, the opposite is required for the input.
Which is the best description of current mode logic?
Current mode logic ( CML ), or source-coupled logic ( SCL ), is a digital design style used both for logic gates and for board-level digital signalling of digital data .
How is sink logic connected to source logic?
In other words, a sink logic circuit needs to be connected to a source logic circuit. Figure 1 shows a sinking digital output that is connected to a sourcing digital input. The input circuit is connected between the positive power supply side (Vcc) and NPN transistor.