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Why do we use emitter follower with ECL?
Beginning in the early 1960s, ECL circuits were implemented on monolithic integrated circuits and consisted of a differential-amplifier input stage to perform logic and followed by an emitter-follower stage to drive outputs and shift the output voltages so they will be compatible with the inputs.
What is ECL?
ECL are a probability-weighted estimate of credit losses. A credit loss is the difference between the cash flows that are due to an entity in accordance with the contract and the cash flows that the entity expects to receive discounted at the original effective interest rate.
What is PECL circuit?
PECL stands for “Positive Emitter Coupled Logic”. PECL are differential logic outputs commonly used in high-speed clock distribution circuits. Low Voltage PECL (LVPECL) denotes PECL circuits designed for use with 3.3V or 2.5V supply, the same supply voltage as for low voltage CMOS devices.
What is the biggest advantage of emitter coupled logic?
A major advantage of ECL is that the current-steering behavior of the input stage (i.e., Q1 and Q2) does not cause disturbances in the way that CMOS switching does. However, this noise performance is achieved at the cost of burning more static power.
Which one is fastest saturated logic family?
Emitter-coupled-logic
Emitter-coupled-logic (ECL) is a BJT logic family that is generally considered the fastest logic available. ECL achieves its high-speed operation by employing a relatively small voltage swing and preventing the transistors from entering the saturation region.
What is ECL and how is it calculated?
ECL formula – The basic ECL formula for any asset is ECL = EAD x PD x LGD. This has to be further refined based on the specific requirements of each company, the approach taken for each asset, factors of sensitivity and discounting factors based on the estimated life of assets as required.
What Is a Stage 2 loan?
Stage 2 – If a loan’s credit risk has increased significantly since initial recognition and is not considered low, lifetime ECLs are recognised. The calculation of interest revenue is the same as for Stage 1. It is also not the credit losses on loans that are forecast to actually default in the next 12 months.
Which is faster MECL 10h or 100K?
The 10k family is the most docile one, with intentionally detuned transition times to make it easier to work with – slower in general than 10H. 10H is faster, and has better logic level compensation vs. process and supply voltage. MECL III is the in-between family: faster than 100k, but slower than 10H.
Which is the best definition of ECL in electronics?
In electronics, emitter-coupled logic (ECL) is a high-speed integrated circuit bipolar transistor logic family.
What do you need to know about ECL logic?
ECL has a specific requirements for power supplies and logic thresholds. The various 10x families are slightly different. The 100 parts are apparently just temperature compensated. ECL is high-performance stuff, so if you do anything serious with it, I really recommend reading the documentation.
What are the Hi and Lo logic levels?
For standard ECL circuits, the Hi and Lo logic levels are defined to be V CC -0.8 V and V CC -1.6 V, respectively. Since these levels are referenced to the V CC supply only, they are applicable to ECL’s, LVECL’s, PECL’s and LVPECL’s.