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LM2889 TV Video Modulator
LM2889 TV Video Modulator

... Two RF channels are available, with carrier frequencies up to 100 MHz being determined by L-C tank circuits at pins 4/ 5 and 6/7. The signal inputs (pins 10 and 11) are common to both modulators, but removing the power supply from an RF oscillator will also disable that modulator. The offset between ...
Understanding Impedances
Understanding Impedances

... the woofer’s output by about 6 dB. The unwanted sound from the woofer will be 4 dB louder than the desired sound coming from the tweeter! As you might guess, if we gave the name “1st-order” to that kind of crossover, then there must also be circuits that are 2nd-order, 3rd-order, 4th-order, and so o ...
Tech License Study Guide PowerPoint
Tech License Study Guide PowerPoint

ICS843201-375 - Integrated Device Technology
ICS843201-375 - Integrated Device Technology

... The clock layout topology shown below is a typical termination for LVPECL outputs. The two different layouts mentioned are recommended only as guidelines. ...
AD826
AD826

... case, CF is bootstrapped and does not contribute to the overall compensation capacitance of the device. As the capacitive load is increased, a pole is formed with the output impedance of the output stage. This reduces the gain, and therefore, CF is incompletely bootstrapped. Effectively, some fracti ...
Electronics 2 - Philadelphia University Jordan
Electronics 2 - Philadelphia University Jordan

...  The cascode amplifier consists of common emitter followed by common base. It receives current signal at low input resistance and delivers an almost equal current to the load at:  Very low output impedance.  Very high output impedance.  At the same value of input resistance.  The active BJT loa ...
Man Operativo Active Ing
Man Operativo Active Ing

Class-B Microwave-Photonic Link Using Optical Frequency
Class-B Microwave-Photonic Link Using Optical Frequency

... power contributes to signal power. If suitable transfer functions for the source modulator can be realized, shot noise can be reduced by 11 dB and intensity noise by 20 dB, relative to a conventional link and for a modulation index of 10%. However, as described later, this requires a perfectly linea ...
ee221_2
ee221_2

... circuit branch where each loop contains a unique branch (not included by any other loop) and no loops “crisscross” each other (but they can overlap in common branches). Perform KVL around each loop expressing all voltages in terms of loop currents. ...
Loop and Nodal Analysis and Op Amps
Loop and Nodal Analysis and Op Amps

WPS-343724-02
WPS-343724-02

... material, 20 mil thick, and 2 oz copper weight. The ‘02’ package is used to evaluate the WPS343724-02 hardware. The 4 watt device in the ‘02’ package has a limited temperature range of approximately 60°C. An earless flange or flange package is offered with better Tjc and can be used at much higher t ...
LM2662 Switch cap inverter-doubler.pdf
LM2662 Switch cap inverter-doubler.pdf

... the device. The input voltage is applied to the GND pin with an allowable voltage from 2.5V to 5.5V. The V+ pin is used as the output. The LV pin and OUT pin must be connected to ground. The OSC pin can not be driven by an external clock in this operation mode. The unloaded output voltage is twice o ...
Amateur Radio Technician Class License Study Guide
Amateur Radio Technician Class License Study Guide

... communications with any country whose administration has notified the ITU that it objects to such communications. [97.111(a)(1)] During an Armed Forces Day Communications Test an FCC-licensed amateur station may exchange messages with a U.S. military station. [97.111(a)(5)] The transmission of codes ...
TOPIC 10 UPDATED Nov.2, 2005
TOPIC 10 UPDATED Nov.2, 2005

NB4N507A 3.3V/5V, 50 MHz to 200 MHz PECL Clock Synthesizer
NB4N507A 3.3V/5V, 50 MHz to 200 MHz PECL Clock Synthesizer

LMF100 High Performance Dual Switched Capacitor Filter
LMF100 High Performance Dual Switched Capacitor Filter

1. sound and the science of musical instruments
1. sound and the science of musical instruments

... your names and a title on each plot that you print. ...
Hallicrafters SX-88 Owners Manual
Hallicrafters SX-88 Owners Manual

Reviewing key areas when designing with the NE605
Reviewing key areas when designing with the NE605

Study and Simulation of Phasor Measurement Unit for Wide Area
Study and Simulation of Phasor Measurement Unit for Wide Area

... PMUs are synchronized by satellites through a GPS receiver. The time accuracy of such system is typically in the order of a few hundred nanoseconds. Time stamps are created by the GPS receiver as a label of measurement and for future comparison of measurements. The other important function of the GP ...
GEOPHONE SPURIOUS FREQUENCY
GEOPHONE SPURIOUS FREQUENCY

... higher distortion or a lees robust design; more prone to damage, reducing field life. These are all direct consequences of stiffening the spring to push the spurious resonance to higher frequencies. The stiffer springs place more stress on the spring arms when they are flexed in their flat plane. Of ...
ppt
ppt

... conductor where it gets absorbed • Arranging optimum shielding is something of an art., something of hit and miss • Very important in high resistance transducers (like glass electrodes or pH electrodes Here even tiny noise get dramatically amplified • Wiring –avoid loops to reduce parasitic inductan ...
Norbert H.L. Koster, Bettina J. Koster, Daniel Erni, and Adalbert Beyer
Norbert H.L. Koster, Bettina J. Koster, Daniel Erni, and Adalbert Beyer

... addition to the wellknown harmonics, the circuit produces more than the designed signal. If the possible operating frequency range of the used transistors is too large, the transistors will probably oscillate at additional higher frequencies due to parasitic effects such as pad capacitances of the c ...
Datasheet. - Logos Foundation
Datasheet. - Logos Foundation

... A feedback pole is created when the feedback around any amplifier is resistive. The parallel resistance and capacitance from the input of the device (usually the inverting input) to ac ground sets the frequency of the pole. In many instances, the frequency of this pole is much greater than the expec ...
Abstract— II.  D R
Abstract— II. D R

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Superheterodyne receiver



In electronics, a superheterodyne receiver (often shortened to superhet) uses frequency mixing to convert a received signal to a fixed intermediate frequency (IF) which can be more conveniently processed than the original radio carrier frequency. It was invented by US engineer Edwin Armstrong in 1918 during World War I. Virtually all modern radio receivers use the superheterodyne principle. At the cost of an extra frequency converter stage, the superheterodyne receiver provides superior selectivity and sensitivity compared with simpler designs.
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