Once synchronized and data fields are properly aligned, overhead bits for alarms, performance monitoring, embedded signaling, etc. A technique used to modulate the power delivered to a load. The PAL television standard uses a subcarrier frequency of 4.43362MHz. Example: An AM broadcast radio channel in the US has a bandwidth of 10kHz, meaning that it occupies a 10kHz-wide band, such as the frequencies from 760kHz to 770kHz. A power supply line controller which allows circuit boards or other devices to be removed and replaced while the system remains powered up. As you study electricity in your engineering program, and as you work with electricity in the power plants, industrial plants, you will hear, read, and use various electrical terms. E.g. Most electrical signals are single-ended, comprised of a single wire and ground. Apart from high gain an electronic amplifier circuit should have the following characteristics: Amplification can be done relative to ground (single-ended) or relative to another terminal (differential). A voltage on the gate controls the current flow between the source and drain. A classification of the information capacity or bandwidth of a communication channel. Minimal signal reflection is obtained when the source impedance is equal to the load impedance (ZS=RL+jXL), which is called reflectionless matching. In radio systems, Space Diversity transmits a signal on multiple propagation paths. This variation in PWM (pulse-width modulation) combines the efficiency at low loads afforded by PFM (Pulse-Frequency Modulation) with PWM's efficiency and low-noise characteristics at higher loads. See the list of Maxim Evaluation Kits and EVKit software. Class G amplifiers are similar to class AB amplifiers except they use two or more supply voltages. The entire network shares a common frequency throughout it's tree-like structure, although phase and time delay variations exists at various points along the edge of the network. Microampere, or microamp: A millionth of an Ampere. 0000002542 00000 n
While voltage is the most commonly amplified type of input signal, amplifiers can also be designed to increase current. This kind of display can be brighter and more efficient than current LCD displays. Digitally adjusted pulse-width modulation, Differential quadrature phase-shift keying. all RUbbeR Cable - A cable in which all voids A capacitor is a passive electronic component that consists of two conductive plates separated by an insulating dielectric. A substance that can act as an electrical conductor or insulator depending on chemical alterations or external conditions. Examples are OFDM; standard FM stereo broadcast (in which left and right are multiplexed onto one baseband signal); standard television in which video and several audio signals shared the channel; and time-division multiplexing which gives each signal a separate time-slice. Used in audio applications, the load (a speaker in this case) is connected between two audio amplifier outputs (it "bridges" the two output terminals). The term "serial" interface is often used for an RS-232 interface. An n-channel metal-oxide semiconductor (nMOS) transistor is one in which n-type dopants are used in the gate region (the "channel"). a microphone is a transducer that converts sound energy into electrical energy). Ten 20-channel blocks have been allocated in these frequency bands by the FCC. Just a Bunch of Disks: An array of hard disks without a controller. It is measured in volts or “V”. Coulomb’s Law A law that states that charged objects attract or repel each other with a force that is directly proportional to the product A Ed. Bit 0 is modulated to A bridge rectifier provides full-wave rectification. Electronic Industries Alliance: Among other things, the EIA sponsors electrical and electronic standards. Random jitter (RJ) includes all jitter components not defined as deterministic jitter (i.e., the jitter that is not related to the signal and known noise sources). 0000125257 00000 n
The Boolean expression for a NAND gate with two inputs (A, B) and output X is: Figure 1. Measured in Hertz. Software and hardware companies sometimes promote products as suitable for the SOHO market. 900MHz SMR is primarily used for radio dispatch, paging, and wireless data communications. Also refers to using a switched capacitor to boost the voltage of a node. the full terms are stated as definitions. Another important advantage is that because OLED displays do not need a backlight, they consume less power. Buck-boost converters are commonly used in mobile phones. The signal produced by an electronic oscillator can be viewed using a piece of equipment called an oscilloscope, which displays the signal on a screen where the y-axis represents voltage and the x-axis represents time.