เข้าสู่ระบบ สมัครสมาชิก

noise margin การใช้

ประโยคมือถือ
  • These pulses can couple in unexpected ways between multiple integrated circuit packages, resulting in reduced noise margin and lower performance.
  • Their first line of ICs was the " micrologic " DTL ( diode-transistor-logic ) which had much better noise margins.
  • The fact that the high and low logic levels are relatively close meant that ECL suffers from small noise margins, which can be troublesome.
  • Although it is not strictly necessary to have two bit lines, both the signal and its inverse are typically provided in order to improve noise margins.
  • On a 0.5 mm wire with 3 dB noise margin and no spectral limitations, the max bitrate can be achieved over distances of up to.
  • The DC resistance of the cable limits the length of the cable for low data rate applications by increasing the noise margin as the voltage drop in the cable increases.
  • If the two devices are far enough apart or on separate power systems, the local ground connections at either end of the cable will have differing voltages; this difference will reduce the noise margin of the signals.
  • The 0.4V noise margins are adequate because of the low output impedance of the driver stage, that is, a large amount of noise power superimposed on the output is needed to drive an input into an undefined region.
  • It also reduces both the noise margin and the window in which the signal can be sampled, which shows that the performance of the system will be worse ( i . e . it will have a greater bit error ratio ).
  • I "'think "'that 5V was about the lowest voltage that ordinary TTL logic gates ( with multi-emitter inputs, so-called " totem-pole " outputs, etc . ) could utilize and still produce an adequate noise margin.
  • However, it has not been possible to scale the supply voltage used to operate these ICs proportionately due to factors such as compatibility with previous generation circuits, noise margin, power and delay requirements, and non-scaling of threshold voltage, subthreshold slope, and parasitic capacitance.
  • We've probably all done it ( a classic example is making a one-shot out of a Schmitt inverter, capacitor and diode ) but they eat into your noise margins and change behaviour with temperature . " There's a textbook with a chapter about it here.
  • The noise margin-the amount of noise required to cause the receiver to get an error-is given by the distance between the signal and the zero amplitude point at the sampling time; in other words, the further from zero at the sampling time the signal is the better.
  • With the advent of CMOS, the precharge transistor could be changed to be the complement of the logic transistor type, which allows the gate's output to charge quickly all the way up to the high level of the clock line, thus improving the speed, signal swing, power consumption, and noise margin.
  • The input source has to be low-resistive enough ( < 500 ? ) so that the flowing current creates only a negligible voltage drop ( < 0.4 V ) across it, for the input to be considered as a logical " 0 " ( with a 0.4 V " noise margin ", see below ).