Search results
Results From The WOW.Com Content Network
The difference of principal between CML and ECL as a link technology is the output impedance of the driver stage: the emitter follower of ECL has a low resistance of around 5 Ω whereas CML connects to the drains of the driving transistors, that have a high impedance, and so the impedance of the pull up/down network (typically 50 Ω resistive ...
Of these families, only ECL, TTL, NMOS, CMOS, and BiCMOS are currently still in widespread use. ECL is used for very high-speed applications because of its price and power demands, while NMOS logic is mainly used in VLSI circuits applications such as CPUs and memory chips which fall outside of the scope of this article. Present-day "building ...
ECL circuits available on the open market usually operated with logic levels incompatible with other families. This meant that interoperation between ECL and other logic families, such as the popular TTL family, required additional interface circuits. The fact that the high and low logic levels are relatively close meant that ECL suffers from ...
A TTL input signal is defined as "low" when between 0 V and 0.8 V with respect to the ground terminal, and "high" when between 2 V and V CC (5 V), [22] [23] and if a voltage signal ranging between 0.8 V and 2.0 V is sent into the input of a TTL gate, there is no certain response from the gate and therefore it is considered "uncertain" (precise ...
The Institute of Banking Personnel Selection (IBPS) is a central recruitment agency operating under the ownership of the Ministry of Finance in the Government of India that was started with an aim to encourage the recruitment and placement of young undergraduates, postgraduates and doctorates at the rank of Group 'A' officer, Group 'B' officer, Group 'C' employee and Group 'D' employee in ...
Logic levels are usually represented by the voltage difference between the signal and ground, although other standards exist. The range of voltage levels that represent each state depends on the logic family being used. A logic-level shifter can be used to allow compatibility between different circuits.
A bank must be conservative in its estimates if there is a lack of data to accurately quantify the risk parameters. Credit scoring models are allowed to play a role in the estimation of the risk parameters as long as sufficient human judgment not captured by the model is taken into account to assign the final rating to a borrower.
The scheme of work is usually an interpretation of a specification or syllabus and can be used as a guide throughout the course to monitor progress against the original plan. Schemes of work can be shared with students so that they have an overview of their course. The ultimate source of the specification or syllabus is a curriculum.