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Terminating resistor values of 78.7 ohms 2 watt 1% are used on the MIL-STD-1553 bus. At the two ends of the bus, resistors connect between the positive (high) and negative (low) signal wires either in internally terminated bus couplers or external connectorized terminators.
Various resistor types of different shapes and sizes. A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages, bias active elements, and terminate transmission lines, among other uses.
The termination resistors are needed to suppress reflections as well as return the bus to its recessive or idle state. High-speed CAN uses a 120 Ω resistor at each end of a linear bus. Low-speed CAN uses resistors at each node. Other types of terminations may be used such as the Terminating Bias Circuit defined in ISO11783. [9]
The difference from standard LVDS transmitters was increasing the current output in order to drive the multiple termination resistors. In addition, the transmitters need to tolerate the possibility of other transmitters simultaneously driving the same bus. Typical multipoint termination. Point-to-point LVDS typically operates at 3.5 mA.
The resistor can be built of 10 parallel sets of three 1,600 Ω, 1 W resistors, in series. In order to make it roughly omnidirectional , the antenna is ideally strung sloping at an angle of 20–40 degrees from horizontal, [ 4 ] but will also function satisfactorily if mounted horizontally, as long as it is pulled-out in a reasonably straight line.
On-die termination is implemented with several combinations of resistors on the DRAM silicon along with other circuit trees. DRAM circuit designers can use a combination of transistors that have different values of turn-on resistance. In the case of DDR2, there are three kinds of internal resistors 150ohm, 75ohm, and 50ohm.
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In radio this device is also known as a dummy antenna or a radio frequency termination. It is a device, usually a resistor , used in place of an antenna to aid in testing a radio transmitter . It is substituted for the antenna while one adjusts the transmitter, so that no radio waves are radiated so that the transmitter does not interfere with ...