• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
TPA0252 数据资料 dataSheet 下载
TPA0252 数据资料 dataSheet 下载

... delivering 2.8 W of continuous RMS power per channel into 3-Ω loads. This device minimizes the number of external components needed, which simplifies the design and frees up board space for other features. When driving 1 W into 8-Ω speakers, the TPA0252 has less than 0.3% THD+N across its specified ...
RM4100 User Guide - American Innovations
RM4100 User Guide - American Innovations

... Wiring Requirements: For optimum protection from transient voltages (typically, ...
HMC550 数据资料DataSheet下载
HMC550 数据资料DataSheet下载

Document
Document

RF5924 2.4GHz TO 2.5GHz, SINGLE-BAND FRONT-END MODULE Features
RF5924 2.4GHz TO 2.5GHz, SINGLE-BAND FRONT-END MODULE Features

... The RF5924 FEM is a single-chip integrated front-end module (FEM) for high performance WiFi applications in the 2.4GHz to 2.5GHz ISM band. The FEM addresses the need for aggressive size reduction for a typical 802.11b/g RF front-end design and greatly reduces the number of components outside of the ...
18-Bit, 1-MSPS Data Acquisition (DAQ) Block Optimized for Lowest
18-Bit, 1-MSPS Data Acquisition (DAQ) Block Optimized for Lowest

Thompson - WPI - Worcester Polytechnic Institute
Thompson - WPI - Worcester Polytechnic Institute

... Equivalent Circuits in DC-DC Converters • Replacing inductors and capacitors by current and voltage sources, respectively ...
Inductive and Capacitive Reactance
Inductive and Capacitive Reactance

PQM-700 Operating manual
PQM-700 Operating manual

... to the device and constitute a source of danger for the user. PQM-700 analyzers must be operated only by appropriately qualified personnel with relevant certificates authorising the personnel to perform works on electric systems. Operating the analyzer by unauthorised personnel may result in damage ...
Inductive and Capacitive Reactance
Inductive and Capacitive Reactance

NCP1010 - ON Semiconductor
NCP1010 - ON Semiconductor

TSMC: Advanced Design for Low Power at 65nm and Below
TSMC: Advanced Design for Low Power at 65nm and Below

Trim and Margin - Cypress Semiconductor
Trim and Margin - Cypress Semiconductor

International Electrical Engineering Journal (IEEJ) Vol. 6 (2015) No.1, pp. 1743-1748
International Electrical Engineering Journal (IEEJ) Vol. 6 (2015) No.1, pp. 1743-1748

... Modern power systems are complex networks consisting of more number of generating stations and load centers which are interconnected through the power transmission lines. Industrial processes containing voltage sensitive devices, vulnerable to degradation in the quality of power supply. The power sy ...
MAX5887 3.3V, 14-Bit, 500Msps High Dynamic Performance DAC with Differential LVDS Inputs
MAX5887 3.3V, 14-Bit, 500Msps High Dynamic Performance DAC with Differential LVDS Inputs

AD8309 数据手册DataSheet 下载
AD8309 数据手册DataSheet 下载

... output stage provides a further 18 dB of gain. The input is fully differential and presents a moderately high impedance (1 kΩ in parallel with 2.5 pF). The input-referred noise-spectral-density, when driven from a terminated 50 Ω, source is 1.28 nV/√Hz, equivalent to a noise figure of 3 dB. The sens ...
Zener Diode Characteristics Lab#05 - SSUET CE
Zener Diode Characteristics Lab#05 - SSUET CE

AN1971
AN1971

... Two circuits are used for voltage measurement, similar to the current measurement. The first, used to measure a peak value, is depicted in Figure 6. It is a simple voltage divider with output in the range from 0 to 5V. To avoid an error caused by the voltage drop on the diode D3, the divider has bee ...
RF5388 3.3V, DUAL-BAND FRONT-END MODULE Features
RF5388 3.3V, DUAL-BAND FRONT-END MODULE Features

... The RF5388 is a single-chip dual-band integrated front-end module (FEM) for high performance WiFi applications in the 2.5GHz and 5GHz ISM bands. The RF5388 addresses the need for aggressive size reduction for a typical 802.11a/b/g RF front-end design and greatly reduces the number of components outs ...
Frequently Asked Questions
Frequently Asked Questions

improving transformer protection
improving transformer protection

SMV/SMP/SMPQ Instruments Operating Manual
SMV/SMP/SMPQ Instruments Operating Manual

... 3.5.4.6 SMP/SMPQ Instrument Energy Presentation..............................................................................42 3.5.4.7 SMP/SMPQ Instruments Maximum Active Power Demand Presentation....................................42 ...
J. Hu, A.D. Sagneri, J.M. Rivas, Y. Han, S.M. Davis, and D.J. Perreault, “High-Frequency Resonant SEPIC Converter with Wide Input and Output Voltage Ranges,” IEEE Transactions on Power Electronics , Vol. 27, No. 1, pp. 189-200, Jan. 2012.
J. Hu, A.D. Sagneri, J.M. Rivas, Y. Han, S.M. Davis, and D.J. Perreault, “High-Frequency Resonant SEPIC Converter with Wide Input and Output Voltage Ranges,” IEEE Transactions on Power Electronics , Vol. 27, No. 1, pp. 189-200, Jan. 2012.

Product information - VEGABAR 86 VEGABAR 87 VEGAWELL 52
Product information - VEGABAR 86 VEGABAR 87 VEGAWELL 52

... Please note the Ex specific safety information that you can find at www.vega.com and that comes with each instrument. In hazardous areas you should take note of the appropriate regulations, conformity and type approval certificates of the sensors and power supply units. The sensors must only be oper ...
Internal Power Supply Discussion
Internal Power Supply Discussion

< 1 ... 48 49 50 51 52 53 54 55 56 ... 316 >

Decibel

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.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report