September, 2011
Molex introduces MarKK terminal in order to meet electric current requirement that is promoting constantly
In order to meet Molex MarKK terminal that electric current bearing capacity that is promoting constantly demands to design it is the product of new generation in KK end subfamily. MarKK pressing terminal adopts the alloy of high conductivity, every line can bear the weight of 13.5A electric current in the two-way system. It can be used in large-scale and minicom, household electrical appliance and consuming electronic product, heat, air exhaust, air conditioner and diagnostic facility.
Molex Incorporated global products manager John Luthy shows, ” offer the characteristic of future generation in the familiar KK terminal design, proved ” The building blocks ” The interface unit system of the type makes customers establish and accommodate any applied customization ... Read more
Micrel releases 2.5Gbps laser diode driver SY88212L with APC
McRae Company Micrel Inc. Introduce a 2.5Gbps new laser diode driver LDD that can be used singly recently ,This driver has integral automatic power control APC And power supervisory function, thus can keep the invariable average luminous power with the whole life cycle of this laser device when the temperature is changed. SY88212L can also bear higher constant current and make output voltage in the design, this makes it can couple the direct current with this laser device, thus has reduced the quantity of the external part and reduced the power consumption. SY88212L is one for data communication such as data LAN and metropolitan area network and telecommunications employ the high 3.3V form power up to 2.5Gbps of data transmission rate of product design to supply power Laser driver. Such ap... Read more
Ann sets up and puts out and contains 9kHz- Economy microwave spectrum analyzer of 20GHz
Ann sets up the company and puts out MS271xB serial economy microwave spectrum analyzers which contains the frequency domain of 9kHz- 7.1GHz, 9kHz- 13GHz and 9kHz- 20GHz. MS271xB series offered outstanding RF to measure characteristic and complete set and measure the function, this serial products including three kinds of types, they are low-cost alternative schemes tested in the test boards of wireless, microwave device, subsystem and system used in the spaceflight / national defence and university market.
The spectrum analyzer of other equal prices has no function and characteristic that series MS271xB have. RBW, higher thanning on these be 1Hz- product 3MHz /- the amplitude precisions of 1.3dB,and whether when 10kHz deflect – the phase noises lows of 114dBc/Hz. Rely on... Read more
A/D converter MAXl25 application in the digital signal processor
A/D converter MAXl25 application in the digital signal processor Li YingHui, one fluffies cranes the high-pressure electric company of China of research institute of Wuhan, Hubei Wuhan 430074
A foreword
Using the digital signal processor DSP In the intellectual instrument that forms, various external analog signals could be sent into the microprocessor after transforming to the digital signal through the analog to digital converter. MAX125 high-accuracy converter of MAXIM Company has higher performance-cost ratio, the single-channel highest conversion frequency is reachable 250 KHz is widely used in instrument,etc. measures the field. This circuit adopts the surface installation type of 36 pins to cap... Read more
Hold the cluster and put out Flash type pronunciation IC repeatable recording
Hold the cluster semiconductor Holtek Put out Flash type pronunciation series IC HT83Fxx, not only repeatable recording, and can revise the speech chip on the circuit board. HT83Fxx based on Flash memory can vary the pronunciation content easily, solves the multinational language since going over and produces the puzzlement held in store effectively.
Include and hold 8 microcontrollers of cluster in HT83Fxx, and built-in Flash Voice ROM, SPI at a high speed interfaces with I2C, single tone 12 – bit voltagetype DAC, PWM pushes 8/16ohm loudspeaker directly, range of capacity of pronunciation is from 32 seconds to 512 seconds, with the few outside part, extremely good ability to resist noise and industry specification temperature range – 40 ℃- 85 ℃ ,Let the products... Read more
The electron puts out the output input control core which supports Intel Eaglelake and AMD AM3 platform in the Nation of China
After the electron continues series W83627EHG and W83627DHG widely and obtains every big PC in the world, host board manufacturers’ favorable comment and adopts in the Nation of China, then carry on the research and development of the chip set to AM3 platform of Eaglelake platform and AMD of Intel, put out a new generation and export input Super I/O ceremoniously recently Control chip W83667HG.
This product supports PECI Platform Environment Control Interface that Intel issues newly ,SSTSimple Serial Transport With AMD SB-TSI interface. Intel PECI interfaces with AMD SB-TSI and is used mainly for detecting CPU chip and systematic ambient temperature of detect. W83667HG contains and can carry out VID Input/Output pin position that CPU dynamic excess pressure presumes even mo... Read more
Type of the stepping motor
Type of the stepping motor
To amateur, it is the unipolarity also call phase of a pair of wired and 4 to be aptest to get the stepping motor And bipolar also call the single wired and quarter-phase Stepping motor. First, unipolarity stepping motor This kind of stepping motor the reason why to call unipolarity is because the electric current flows only along one direction in each coil. It is known as the stepping motor of Line two too, because it only contains two coils. The polarity of two coils is opposite, coil on the same core, have the same midpoint tap. The unipolarity stepping motor is still known as 4 phase stepping motors, because it has 4 drive windings. There are 5 or 6 lead wire of the unipolarity stepping motor... Read moreABC of the soldering flux products
First. It has certain chemical activity and has good expansion with the good dampness, to the solder of thermal stability and has facilitation that is retained on with the requirement for the soldering flux that surface mounted The flux residue of the base plate, have no amount that corrosivity has good washing nature chlorine to the base plate in 0.2% W/W Following.
Two. Function of the soldering flux
Weld the process: It preheat / begin to melt solder / form solder alloy /form pad /solder solidification
Function: The auxiliary heat is spread differently / removed oxides / reduced surface tension / prevented the reoxidation
Comments: Solvent evaporation /heat,cover flux at substrate and solder surface,make heat transfer even / last activating agent
... Read moreFit the American semiconductor full of trees and put out 24 new high density ditch grooves MOSFET
Fit the American semiconductor ON Semiconductor full of trees Put out 24 30 volts of V with new fund , nchannel ditch groove Trench Metaloxide-semiconductor field effect transistor MOSFET . These MOSFET adopts DPAK, SO-8FL, μ 8FL and SOIC-8 to capsulate, stepping down synchronously to computer and game machine when employed converter offers more high switch characteristic.
MOSFET of the new series utilizes fitting the American semiconductor full of trees to obtain the ditch groove technology that the market proves, offer excellent feed-through impedance [RDS on ]And more high switch characteristic, is used in the personal computer PC , the server, game machine, processor stabilized voltage supply VRM And support some POL Synchronous direct current while employing – direct ... Read more
