• Study Resource
  • Explore Categories
    • 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
A 0.1-to-1.2GHz Tunable 6th-Order N-Path Channel
A 0.1-to-1.2GHz Tunable 6th-Order N-Path Channel

... The extra phase shifts due to parasitic capacitors at node x and Vout of the filter distort the pass-band shape of the filter and cause more than 1.5dB of peaking. A miller-capacitor Cf is exploited to slightly lower the fc of the first resonator while enhancing the bandwidth at Vout to reduce the e ...
Low Band High Performance Preamp
Low Band High Performance Preamp

Measuring Output - Transformer Performance
Measuring Output - Transformer Performance

... It can easily be proven mathematically that below saturation, the voltage distortion will be small and nearly independent of the µr behavior, as long as the condition of formula 7 is met: ...
Section I3: Feedback Amplifiers
Section I3: Feedback Amplifiers

... BJT. For this form of feedback, the resistor RF “samples” the output voltage vO and feeds back a current that is then mixed with the source current. Since vo > vin, the current will flow as indicated in the figure above. For our purposes, we will assume that the capacitors CC and CE are sufficiently ...
CF8000 - Ortec
CF8000 - Ortec

... Marburg, LGL-Berkeley. The number of channels built has been doubled every year resulting in more than 100 channels in 1983. In 1962, the new 8-channel version with internal delay hybrids, gated baseline restores, inhibit input, and outputs for energy, time (ECL) common multiplicity. Sum-energy, and ...
AD8016 Low Power, High Output Current xDSL Line Driver Data
AD8016 Low Power, High Output Current xDSL Line Driver Data

... (PWDN0, PWDN1) allow the driver to be capable of full performance, an output keep-alive state, or two intermediate bias states. The keep-alive state biases the output transistors enough to provide a low impedance at the amplifier outputs for back termination. The low power dissipation, high output c ...
ST485ERB
ST485ERB

... RS-485 and RS-422 communication. Each driver output and receiver input is protected against ±15 kV electrostatic discharge (HBM) ± 8 kV (IEC1000-4-2 contact discharge) shocks, without latch-up. These parts contain one driver and one receiver. This transceiver draws 300 µA (typ.) of supply current wh ...
Analog Devices Welcomes Hittite Microwave Corporation
Analog Devices Welcomes Hittite Microwave Corporation

... All clock and data inputs to the HMC855LC5 are CML and terminated on-chip with 50 Ohms to the positive supply, GND, and may be DC or AC coupled. The differential outputs are source terminated to 50 Ohms and may also be AC or DC coupled. Outputs can be connected directly to a 50 Ohm ground terminated ...
Slide 1
Slide 1

Wideband, Low-Noise, Voltage-Feedback OPERATIONAL AMPLIFIER APPLICATIONS FEATURES
Wideband, Low-Noise, Voltage-Feedback OPERATIONAL AMPLIFIER APPLICATIONS FEATURES

... input voltage noise, along with a very low distortion output stage, gives one of the highest dynamic range op amps available. The very high Gain Bandwidth Product (GBP) can be used either to deliver high signal bandwidths at high gain, or to deliver very low distortion signals at moderate frequencie ...
UCC2581 数据资料 dataSheet 下载
UCC2581 数据资料 dataSheet 下载

... A Typical Micropower Application The circuit shown in Fig. 3 illustrates the use of the UCC3581 in a micropower application. The isolated 5V flyback power supply uses a minimum of parts and operates over an 8:1 input voltage range (15VDC to 120VDC) while delivering a regulated 5V output with a load ...
AC Waves. Because waves are the basis of so many signals in
AC Waves. Because waves are the basis of so many signals in

... Many signal waves, tend to be repetitive, or "periodic". They repeat a particular pattern or wave shape over a regular time period. The most important of all the different wave shapes is the sine wave, because any periodic wave can be shown to be made up of a series of pure sine waves, perhaps of m ...
Proposed Scheme
Proposed Scheme

... Micro Hydro Power (MHP) plant is one of the most economical and environmental friendly technology of energy supplement in rural area. MHP fulfills the electrical energy demand in rural area which is not served from national grid due to the higher cost of transmission line. So, all the MHP plants are ...
Fully-automated control of lighting and security system of a
Fully-automated control of lighting and security system of a

... The voltage that develops across the receiver is dependent on the opaqueness of the object and the distance between the transmitter and receiver. To deal with this, an inverting Schmitt Trigger (IC40106B) was used. This design permits easy interfacing with the microcontroller as it provides an activ ...
EVOLUTION OF DIGITALLY CONTROLLED OSCILLATORS
EVOLUTION OF DIGITALLY CONTROLLED OSCILLATORS

... easily be operated at gigahertz frequencies and its phase noise performance is the best compared to ring counterpart. However, for wide tuning range with optimum power, the ring based DCO is a suitable choice for chip designers. As far as portability is concerned, only cell-based DCO can easily be p ...
final_paper
final_paper

MAX3861 2.7Gbps Post Amp with Automatic Gain Control General Description Features
MAX3861 2.7Gbps Post Amp with Automatic Gain Control General Description Features

... The MAX3861 is a low-power amplifier with automatic gain control (AGC), designed for WDM transmission systems employing optical amplifiers and requiring a vertical threshold adjustment after the post amp. Operating from a single 3.3V supply, this AGC amplifier linearly amplifies/attenuates the input ...
High Speed, Triple Differential Receiver with Comparators AD8145
High Speed, Triple Differential Receiver with Comparators AD8145

... The maximum safe power dissipation in the AD8145 package is limited by the associated rise in junction temperature (TJ) on the die. At approximately 150°C, which is the glass transition temperature, the plastic changes its properties. Even temporarily exceeding this temperature limit can change the ...
Classification of Data Streams Using Adaptive Naïve Bayes
Classification of Data Streams Using Adaptive Naïve Bayes

... a single conductor trace on one side of a dielectric substrate and a single ground plane on the opposite side. There are numerous such transmission lines present on PCB leaving little space between the two lines, thus increasing the coupling between the two lines carrying different data signals. Thi ...
AUTOMATION OF MEASUREMENTS FOR A RADIO FREQUEN- CY TRANSMITTER AND RECEIVER
AUTOMATION OF MEASUREMENTS FOR A RADIO FREQUEN- CY TRANSMITTER AND RECEIVER

... that must fit together to ensure effective transfer of data over the air. Also, several standards define how a product must perform, for example in terms of safety and electromagnetic compatibility (EMC). In addition, companies developing radio products often set their own internal performance requi ...
FEM modeling of contactless energy transfer CN65
FEM modeling of contactless energy transfer CN65

... 40° sector. Also, the device model is included in an ‘infinite region’ while the magnetic field is assumed to expand out of the airgap. This feature allows assessment of the influence of the charging device on electronic components or optimizes shielding to limit the field radiated within the car bo ...
OPERATING MANUAL FOR SIX-SCR GENERAL PURPOSE GATE
OPERATING MANUAL FOR SIX-SCR GENERAL PURPOSE GATE

... The firing circuit uses a phase-locked loop (PLL) circuit locked to the single phase mains voltage. A series of counters divide the PLL’s oscillator output and a decoder section then generates two 180°-wide delayed logic signals. These logic signals are modulated by the PLL’s voltage controlled osci ...
H-bridge inverter control circuit lab document
H-bridge inverter control circuit lab document

... • The free wheeling diodes permit current to flow even if all switches did open • These diodes also permit lagging currents to flow in inductive loads ...
Crystal Mini Primer - Part 1
Crystal Mini Primer - Part 1

DIRANA Brochure
DIRANA Brochure

< 1 ... 160 161 162 163 164 165 166 167 168 ... 409 >

Heterodyne



Heterodyning is a radio signal processing technique invented in 1901 by Canadian inventor-engineer Reginald Fessenden, in which new frequencies are created by combining or mixing two frequencies. Heterodyning is used to shift one frequency range into another, new one, and is also involved in the processes of modulation and demodulation. The two frequencies are combined in a nonlinear signal-processing device such as a vacuum tube, transistor, or diode, usually called a mixer. In the most common application, two signals at frequencies f1 and f2 are mixed, creating two new signals, one at the sum f1 + f2 of the two frequencies, and the other at the difference f1 − f2. These new frequencies are called heterodynes. Typically only one of the new frequencies is desired, and the other signal is filtered out of the output of the mixer. Heterodynes are related to the phenomenon of ""beats"" in acoustics.A major application of the heterodyne process is in the superheterodyne radio receiver circuit, which is used in virtually all modern radio receivers.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report