51 Research and Design, Electronic Engineers website - Embedded Systems, MCU, DSP, EDA, Test and Measurement, Components, Communications, Power, Microelectronics, Semiconductors

Monday, December 8th, 2008 at 20:09 | No comments

Categories: Communication Networks

Tags: connection, DSP, EDGE, power amplifier, transceiver, WLAN

Short Content: Integrates the WLAN function in the existing honeycomb terminal construction to be completely feasible, the related network infrastructure as well as the hardware and the software construction module has been possible to obtain and to use. The designer needs to consider and the analysis is each kind of use pattern carefully, understands and the management turns over technical and the power loss request. The multi-mold terminal may realize between the different type tetherless access network seamless connection, namely ...

Monday, December 8th, 2008 at 06:49 | No comments

Categories: Communication Networks

Tags: loss examination, RS-485, transceiver

Short Content: Introduction In many industries, the telecommunication, Che Zai as well as in the data processing system, the failure isolation and the safe close-down agreement play the very essential role. Although the built-in test order may in the system off-line time provides the failure isolation, but the real-time failure detection requests to the signal to carry on monitors continually. These systems use RS-485 frequently in the sensor, the transmission device, between the single board computer or the correspondence processor share ...

Friday, November 28th, 2008 at 16:55 | No comments

Categories: SCM

Tags: Monolithic integrated circuit, transceiver, wireless communication

Short Content: Introduction  　　Along with information technology unceasing development, the people are getting stronger and stronger to communication's demand, get rid of the wired network the fetter to realize the wireless communication are always everybody issues of concern, the wireless communication research is now getting more and more hot, the application is widespread, causes between the person and person's correspondence is more convenient quickly, has the market development prospect.        This article takes the communication by Nordic Corporation's nRF905 the core, ...

Thursday, November 13th, 2008 at 08:09 | No comments

Categories: DSP

Tags: connection, DSP, transceiver, USB

Short Content:     Universal serial bus USB (Universal Serial Bus) applies by three parts is composed: Has USB the connection PC system, to be able to support USB the system software and uses the USB connection the equipment. The USB application uses the general connection technology, realizes the peripheral device simple momentary connection, in order to achieves the convenience user, to reduce the cost, to expand the PC machine connection peripheral device scope the goal. The USB characteristic is as follows:     ...

Sunday, October 26th, 2008 at 06:43 | No comments

Categories: Communication Networks

Tags: connection, IP electric circuit, KS8993, MII, transceiver, VLAN

Short Content: Abstract: KS8993 is American KENDIN Corporation develops contains 3 port 10/100 physics level transceiver the high performance quick ethernet exchange electric circuit. Introduced in detail DS8993 the major function, the characteristic and the main connection, have given KS8993 in the IP electric circuit's application example. Key word: KS8993; Medium irrelevant connection (MII); VLAN; Using Chinese Library classification number: TN915.05 document code: B article serial number: 1006-6977 (2006) 01-0038-03 1 introduction < ?XML:NAMESPACE PREFIX = O />     KENDIN Corporation ...

Tuesday, October 21st, 2008 at 06:38 | No comments

Categories: Communication Networks

Tags: isolation, linearity, receives/sends the switch, TD-SCDMA, TDD, transceiver

Short Content:  Introduction       What TD-SCDMA use is time division duplex way (TDD). Regarding the TDD communications system, high grade receives/sends the switch is front end RF electric circuit's essential module. In order to enhance the integration rate, receives/sends the switch to be possible to use the form which the complete works become to substitute for traditional discrete components and so on GaAs MOSFET and PIN diode.       Uses CMOS to receive/sends the switch to substitute for GaAs MOSFET to receive/sends one of switch's ...