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finfet based sram design for low power applications
finfet based sram design for low power applications

HMC684LP4 数据资料DataSheet下载
HMC684LP4 数据资料DataSheet下载

... input IP3 performance of +32 dBm for down conversion is provided for 3G & 4G GSM/CDMA applications at an LO drive of 0 dBm. With an input 1 dB compression of +25 dBm, the RF port will accept a wide range of input signal levels. Conversion loss is 7 dB typical. The DC to 450 MHz IF frequency response ...
AD9865
AD9865

... power saving modes, and high Tx-to-Rx isolation make it well suited for half- and full-duplex applications. The digital interface is extremely flexible allowing simple interfaces to digital back ends that support half- or full-duplex data transfers, thus often allowing the AD9865 to replace discrete ...
Complete PDF Edition (2,508 KB)
Complete PDF Edition (2,508 KB)

... potential φ and magnetic vector potential A, it is capable of dealing with skin effects that take place on various kinds of materials. In addition, for the calculation of electromagnetic forces generated on the individual portions of the finger conductors, we adopted the nodal force method that make ...
Noise
Noise

... Noise Parameters from S Parameters • Noise parameters can be determined by measuring the noise temperature at several generator impedances. For very low noise transistors this is not easily done with sufficient accuracy especially if the Zopt for the transistor is far from 50 ohms and the noise par ...
AIM-Spice Reference Manual
AIM-Spice Reference Manual

DRT Series
DRT Series

... “external load short-circuit” if the current to the Output Unit exceeds the rated maximum of 1.5A. If an external load short circuit is detected, the output is turned OFF in order to prevent damage to the Unit’s output circuit. ...
Insulation monitoring Vigilohm Merlin Gerin
Insulation monitoring Vigilohm Merlin Gerin

... Insulation monitoring devices inject a DC or low-frequency AC voltage between the installation and earth. The insulation resistance is determined by measuring the resulting leakage current. c Vigilohm EM9 devices use an indicator light to signal the presence of an insulation fault within the install ...
Piezo Film Sensors Technical Manual
Piezo Film Sensors Technical Manual

... system can possess a very high dynamic range, even though the overall "insertion loss" due to the film is about -66 dB typically for a structure at resonance. If sufficient gain is applied between these elements, the structure will self-oscillate at its natural frequency. For these resonant mechanic ...
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lecture1425873259

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IOSR Journal of VLSI and Signal Processing (IOSR-JVSP)
IOSR Journal of VLSI and Signal Processing (IOSR-JVSP)

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AD9866

... Integrated 23 dBm line driver with 19.5 dB gain control 12-bit, 80 MSPS A/D converter −12 dB to +48 dB low noise RxPGA (< 2.5 nV/rtHz) Third order, programmable low-pass filter Flexible digital data path interface Half- and full-duplex operation Backward-compatible with AD9975 and AD9876 ...
Induction Motors
Induction Motors

... slots, providing space for the rotor winding one of two types of rotor windings conventional 3-phase windings made of insulated wire (wound-rotor) » similar to the winding on the stator aluminum bus bars shorted together at the ends by two aluminum rings, forming a squirrel-cage shaped circuit (squi ...
Model 9005-A - HI
Model 9005-A - HI

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Chapter 6 The Operational Amplifier

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User Manual

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... controller designed to work with power-sensitive, handheld applications that are based on advanced low-voltage processors. It works with a supply voltage as low as 1.2V, which can be supplied by a single-cell battery. It contains a complete, ultra-low power, 12-bit, analog-to-digital (A/D) resistive ...
M25SI - Vishay
M25SI - Vishay

... When the resistor dissipates power, a temperature rise above the ambient temperature occurs, dependent on the thermal resistance of the assembled resistor together with the printed circuit board. The rated dissipation applies only if the permitted film temperature is not exceeded. These resistors do ...
passkey no-start diagnostics
passkey no-start diagnostics

... Remember, the first time a new TDM or BCM is pow1. Turn the ignition switch to START, then release it to ered up, it permanently memorizes the resistance of the the ON position (the engine will not start). first key in the lock. Sometimes there are good reasons 2. The “Security” light should be ON. ...
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Unconventional signals oscillators

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Electrical Engineering (EE)

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Claudio`s slides (PDF download)

... Determines System Behavior Normally, you may choose a LRG, a HRG or even a HHRG as a way to determine the system grounding. But, the system may have an unexpectable behavior. ...
Oscillators
Oscillators

< 1 ... 105 106 107 108 109 110 111 112 113 ... 2207 >

Resistive opto-isolator



Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.
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