User Manual/Handbook: Microphone Handbook Volume 1
... to provide sufficient background information for customers to get the best out of these products. It also gives adequate information for customers to be able to make informed and
qualified decisions about the microphone products which are most suitable for their measurement requirements. These produ ...
Design of Variable Gain Amplifier - Nanyang Technological University
... power consumption and die area, as well as achieving the required bandwidth for the targeted
In this thesis, a new design approach which is the “cell-based” design method is
proposed. The advantage of cell-based VGA design is that the number of unit cells to be
cascaded can be chosen ac ...
Reconfigurable CMOS Mixers for Radio-Frequency Applications Min Wang
... The momentum for lower cost transceivers in the market is enormous, which makes
CMOS the most attractive technology due to its low cost and high yield. Since the
cost of CMOS transceivers is heavily weighted by the silicon area and packaging,
extensive effort has been taken to reduce the chip size a ...
LP3470 Tiny Power On Reset Circuit (Rev. G)
... time period (tRP) programmed by an external capacitor (C1); after this interval Reset goes to logic high. If a
brownout condition occurs (monitored voltage falls below the reset threshold minus a small hysteresis), Reset
goes low. When VCC returns above the reset threshold, Reset remains low for a t ...
PowerNet MIB Reference Guide
... that might provide an alternative law or forum or to have this agreement written in any language other than English.
Any translation of this agreement to a language other than English is provided only for the convenience of the
customer and is not the legally binding version of the agreement.
The te ...
... Concept of DRFS
• The Distributed RF System (DRFS) is another possibility for a costeffective solution in support of a single Main Linac tunnel design.
• Base line of proposed DRFS
one unit of 750kW Modulating
Anode (MA) klystron would drive
two cavities (in basic configuration
A Design Methodology for Switched-Capacitor DC
... Switched-capacitor (SC) DC-DC power converters are a subset of DC-DC power converters that use a network of switches and capacitors to efficiently convert one voltage to
another. Unlike traditional inductor-based DC-DC converters, SC converters do not rely on
magnetic energy storage. This fact makes ...
Alberta Reliability Standard Voltage and Reactive Control VAR-001-AB-
... R1 The ISO must develop and maintain requirements for monitoring and controllingspecify a system
voltage levels and reactive power flows within the transmission system, including consulting with each
operator of a transmission facility and any transmission operatorrange with an associated tolerance
The decibel (dB) is a logarithmic unit that expresses the ratio of two values of a physical quantity, often power or intensity. One of these quantities is often a reference value and in this case the decibel expresses the absolute level of the physical quantity. The number of decibels is ten times the logarithm to base 10 of the ratio of two power quantities, or of the ratio of the squares of two field amplitude quantities. One decibel is one tenth of one bel, named in honor of Alexander Graham Bell; however, the bel is seldom used.The definition of the decibel is based on the measurement of power in telephony of the early 20th century in the Bell System in the United States. Today, the unit is used for a wide variety of measurements in science and engineering, most prominently in acoustics, electronics, and control theory. In electronics, the gains of amplifiers, attenuation of signals, and signal-to-noise ratios are often expressed in decibels. The decibel confers a number of advantages, such as the ability to conveniently represent very large or small numbers, and the ability to carry out multiplication of ratios by simple addition and subtraction. By contrast, use of the decibel complicates operations of addition and subtraction.A change in power by a factor of 10 is a 10 dB change. At the half power point an audio circuit or an antenna exhibits an attenuation of 3dB. A change in voltage by a factor of 10 results in a change in power by a factor of 100, which is a 20 dB change. A change in voltage ratio by a factor of two approximately corresponds to a 6 dB change.The decibel symbol is often qualified with a suffix that indicates the reference quantity that has been used or some other property of the quantity being measured. For example, dBm indicates a reference power of one milliwatt, while dBu is referenced to approximately 0.775 volts RMS.In the International System of Quantities, the decibel is defined as a unit of measurement for quantities of type level or level difference, which are defined as the logarithm of the ratio of power- or field-type quantities.