The PCA82C250 and PCA82C251 are advanced transceiver products for use in automotive and general industrialapplications with transfer Rates up to 1 Mbit/s. They support the differential bus signal representation beingdescribed in the international standard for in-vehicle CAN high-speed applications (ISO 11898). Controller AreaNetwork (CAN) is a serial bus protocol being primarily intended for transmission of control related data between anumber of bus nodes.
上傳時(shí)間： 2013-11-24
上傳用戶：Alick
The MAX3243E device consists of three line drivers, five line receivers, and a dual charge-pump circuit with±15-kV ESD (HBM and IEC61000-4-2, Air-Gap Discharge) and ±8-kV ESD (IEC61000-4-2, Contact Discharge)protection on serial-port connection pins. The device meets the requirements of TIA/EIA-232-F and provides theelectrical interface between an asynchronous communication controller and the serial-port connector. Thiscombination of drivers and receivers matches that needed for the typical serial port used in an IBM PC/AT, orcompatible. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-Vsupply. In addition, the device includes an always-active noninverting output (ROUT2B), which allowsapplications using the ring indicator to transmit data while the device is powered down. The device opeRates atdata signaling Rates up to 250 kbit/s and a maximum of 30-V/ms driver output slew rate.
標(biāo)簽： MULTICHANNEL 5.5 TO RS
上傳時(shí)間： 2013-10-19
上傳用戶：ddddddd
Abstract: Most hand-held products lack accurate battery-charge monitors ("fuel gauges") because of the misconception that an accurate fuel gauge is difficult to achieve. This article debunks the myths and discusses how to accurately monitor charge at all temperatures, charge and discharge Rates, and aging conditions. 無(wú)線通信和數(shù)據(jù)在新一代手機(jī)和PDA中的融合為再一次的生產(chǎn)力飛躍創(chuàng)造了條件。。隨之而來(lái)的將是經(jīng)濟(jì)的增長(zhǎng)和全新的工作方式，在便攜式計(jì)算機(jī)領(lǐng)域，PC筆記本曾經(jīng)扮演了類似的開(kāi)拓者角角。
標(biāo)簽： 錯(cuò)誤 電量計(jì) 無(wú)線 手機(jī)
上傳時(shí)間： 2013-10-17
上傳用戶：erkuizhang
Abstract: Most hand-held products lack accurate battery-charge monitors ("fuel gauges") because of the misconception that an accurate fuel gauge is difficult to achieve. This article debunks the myths and discusses how to accurately monitor charge at all temperatures, charge and discharge Rates, and aging conditions.
標(biāo)簽： 錯(cuò)誤 電量計(jì) 無(wú)線 手機(jī)
上傳時(shí)間： 2014-03-18
上傳用戶：wenwiang
This an adaptive receiver for a direct-sequence spread spectrum (DS-SS) system over an AWGN channel. The adaptive receiver block is modified from the LMS adaptive filter block in DSP Blockset. For DS-SS signal reception, the adaptive filter needs to have multi-rate operation. The input sample rate is equal to chip rate and the output is at symbol rate. Two Rates are related by PG, processing gain
標(biāo)簽： direct-sequence adaptive receiver spectrum
上傳時(shí)間： 2014-01-16
上傳用戶：D&L37
ITU-T Recommendation V.90 98年9月版本 A DIGITAL MODEM AND ANALOGUE MODEM PAIR FOR USE ON THE PUBLIC SWITCHED TELEPHONE NETWORK (PSTN) AT DATA SIGNALLING Rates OF UP TO 56 000 bit/s DOWNSTREAM AND UP TO 33 600 bit/s UPSTREAM
標(biāo)簽： MODEM Recommendation ANALOGUE DIGITAL
上傳時(shí)間： 2014-01-17
上傳用戶：hn891122
The ability to write efficient, high-speed arithmetic routines ultimately depends upon your knowledge of the elements of arithmetic as they exist on a computer. That conclusion and this book are the result of a long and frustrating search for information on writing arithmetic routines for real-time embedded systems. With instruction cycle times coming down and clock Rates going up, it would seem that speed is not a problem in writing fast routines. In addition, math coprocessors are becoming more popular and less expensive than ever before and are readily available. These factors make arithmetic easier and faster to use and implement. However, for many of you the systems that you are working on do not include the latest chips or the faster processors. Some of the most widely used microcontrollers used today are not Digital Signal Processors (DSP), but simple eight-bit controllers such as the Intel 8051 or 8048 microprocessors.
標(biāo)簽： arithmetic high-speed ultimately efficient
上傳時(shí)間： 2014-11-30
上傳用戶：lizhen9880
These Simulink blocks contain transfer functions that model the pressure and flow transients for axisymmetric 2D viscous flow of a compressible fluid in a straight rigid circular cross section pipelines. Three models are available: (1) pressures at the ends (2) flow Rates at the ends (3) pressure at one end and flow rate at the other Filtering is incorporated to reduce numerical oscillation (Gibbs phenomenon). See J. Dyn. Systems, Meas. & Control vol 122 (2000) pp. 153-162.
標(biāo)簽： transients functions Simulink transfer
上傳時(shí)間： 2014-01-22
上傳用戶：Shaikh
This m file plots the time and frequency domain of UWB PPM(pulse position modulated) waveforms(monocycles and doublets) with different pulse recurring frequency (PRF)and information Rates.
標(biāo)簽： frequency modulated waveforms position
上傳時(shí)間： 2016-06-28
上傳用戶：亞亞娟娟123
Multirate filters provide a practical approach to designing and implementing finite response (FIR) filters with narrow spectral constraints. By changing the input data rate at one or more intermediate points the filter lengths and computational Rates can be greatly reduced when compared to a standard single-rate filter implementation.
標(biāo)簽： implementing Multirate designing practical
上傳時(shí)間： 2016-07-01
上傳用戶：dengzb84
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