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DC Coupling with 7 Series FPGAs GTX Transceivers
DC Coupling with 7 Series FPGAs GTX Transceivers

... 50Ω as possible, but with GPON line rates being very low, the reflections due to impedance mismatch should not be a major issue. Even if the VICM was close to 1.2V, the RX could have tolerated a TX launch amplitude of 2000 mVpp difference. The reason for this is that the gain due the resistor networ ...
2. Traction Drive with PMSM
2. Traction Drive with PMSM

... the Jan Perner Transport Faculty (JPTF), University of Pardubice the experimental researches of special characteristics of traction drives with PMSM from point of view of interference effects in low-frequency area are performed. Some of selected significant results of these works are presented in fo ...
MAX5986A–MAX5986C/MAX5987A IEEE 802.3af-Compliant, High-Efficiency, Class 1/
MAX5986A–MAX5986C/MAX5987A IEEE 802.3af-Compliant, High-Efficiency, Class 1/

... isolation power MOSFET, a 60mA (max) inrush current limit, and a 201mA (MAX5986A) or 323mA (MAX5986B/ MAX5986C/MAX5987A) operating current limit. The integrated step-down DC-DC converter uses a peak current-mode control scheme and provides an easy-toimplement architecture with a fast transient respo ...
LM78S40 Switching Voltage Regulator Applications
LM78S40 Switching Voltage Regulator Applications

... The above calculation for efficiency did not take into account quiescent power dissipation, which decreases efficiency at low current levels when the average input current is of the same magnitude as the quiescent current. It also did not take into account switching losses in the switch and diode or ...
Low Temperature Sintering for Printed Electronics with Pulsed Light
Low Temperature Sintering for Printed Electronics with Pulsed Light

... Requires high energy which can be generated by a flash lamp fast, compact and cost effective alternative to ovens easy retrofit to existing process for roll to roll deployment Needs to be flexible to work with various ink formulations Should be scalable for different process speeds ...
MAX4545-7.pdf
MAX4545-7.pdf

ETC 101 DC Fundamentals
ETC 101 DC Fundamentals

... Explain the use of personal protective equipment. Explain hazards associated with electrical systems. Explain lockout/tag out procedures. Define terms associated with DC electricity. Explain the function of each atomic component structure. Explain the function of electrical charges. State whether a ...
775 Nanovolt Noise Measurement for a Low Noise Voltage Reference
775 Nanovolt Noise Measurement for a Low Noise Voltage Reference

... capacitor, replacing the LTC6655 for this test. Figure 7 is LTC6655 noise after the indicated 24-hour dielectric absorption soak time. Noise is within 775nV peak-to-peak in this 10 second sample window with the root-sum-square correction enabled. The verified, extremely low circuit noise floor makes ...
MAX9471/MAX9472 Multiple-Output Clock Generators with Dual PLLs and OTP General Description
MAX9471/MAX9472 Multiple-Output Clock Generators with Dual PLLs and OTP General Description

... The MAX9471/MAX9472 include two basic configurations. In one configuration, the OTP ROM sets PLL1 output to any frequency between 4MHz to 200MHz, and the I2C interface (MAX9471) or programmable pins set the PLL2 output frequency to a set of audio and video frequencies. In the other configuration, th ...
radio-frequency (rf) system - Variable Energy Cyclotron Centre
radio-frequency (rf) system - Variable Energy Cyclotron Centre

FOD8318 2.5 A Output Current, IGBT Drive Optocoupler
FOD8318 2.5 A Output Current, IGBT Drive Optocoupler

Increasing the noise margin in organic circuits using dual gate
Increasing the noise margin in organic circuits using dual gate

1966 , Volume v.17 n.9 , Issue May-1966
1966 , Volume v.17 n.9 , Issue May-1966

THS1230 数据资料 dataSheet 下载
THS1230 数据资料 dataSheet 下载

... references to match the user's design requirements. For more design flexibility, the internal reference can be bypassed to use an external reference to suit the dc accuracy and temperature drift requirements of the application. The out-of-range output is used to monitor any out-of-range condition in ...
FSSD06 — SD/SDIO and MMC Two-Port Multiplexer Features Description 
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... not have, internally, the system pull-up resistors as defined in the MMC or SD card system bus specifications. The system bus pull-up must be added external to the FSSD06. The value, within the specific specification limits, is a function of the individual application and type of card or peripheral ...
PAM2306 Description Pin Assignments
PAM2306 Description Pin Assignments

... low ESR make them ideal for switching regulator applications. Using ceramic capacitors can achieve very low output ripple and small circuit size. When choosing the input and output ceramic capacitors, choose the X5R or X7R dielectric formulations. These dielectrics have the best temperature and volt ...
DRV2700 High Voltage Driver with Integrated
DRV2700 High Voltage Driver with Integrated

OMDESIREDTI P
OMDESIREDTI P

... particular to such circuits for driving an unknown capacitive load. In some applications it is desirable to have an ampli?er ...
AN-589: Ways to Optimize the Performance of a Difference Amplifier
AN-589: Ways to Optimize the Performance of a Difference Amplifier

... rejection ratios (CMRR), price and sometimes specifications prevent their usage in these applications. In-amps may not have the right bandwidth, dc accuracy, or power consumption requirements that the user requires. Therefore, in these situations, users build their own difference amplifiers by using ...
closed form modeling of crosstalk for distributed rlcg on-chip
closed form modeling of crosstalk for distributed rlcg on-chip

... On chip interconnect plays a dominant role on the circuit performance in both analog and digital domains. Interconnects can no longer be treated as mere delays or lumped RC networks. Crosstalk, ringing and reflections are just some of the issues that need to be addressed for the efficient design of ...
Document
Document

master specification - OPS Schneider Electric
master specification - OPS Schneider Electric

...  Programmable buttons that allow access to 8 data display screens  Panel mountable in a 92mm x 92mm (3.6 in x 3.6 in) panel cutout, using sliding clamps tightened by thumbscrews; remote display can be mounted up to 6 feet (1.8 meters) from the base unit.  Displays any measured parameter with its ...
Low Parasitic Capacitance and Low
Low Parasitic Capacitance and Low

KENDRIYA VIDYALYA LAITKOR PEAK, SHILLONG JABAL Physics
KENDRIYA VIDYALYA LAITKOR PEAK, SHILLONG JABAL Physics

... A transformer is an electrical device which is used for changing the A.C. voltages. A transformer is most widely used device in both low and high current circuit. As such transformers are built in an amazing strength of sizes. In electronic, measurement and control circuits, transformer size may be ...
Modelling of Crosstalk and Delay for Distributed RLCG On
Modelling of Crosstalk and Delay for Distributed RLCG On

... The frequency-domain difference approximation [11] procedure is more general, because it can directly handle lines with arbitrary frequency-dependent parameters or lines characterized by data measured in frequency-domain. The timedomain difference approximation procedure should be employed only if t ...
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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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