·【作 者】 John L. Hennessy同作者书籍 【出 版 社】 Morgan Kaufmann 【书 号】 1558605967 【开 本】 16 开 【页 &nbs
标签： nbsp architecture Quantitative Computer
上传时间： 2013-05-28
上传用户：wqxstar
Abstract: A digital RF modulator, an integrated solution that satisfies stringent DOCSIS RF-performancerequirements, takes advantage of modern technologies like high-performance wideband digital-to-analogconversion and CMOS technology scaling. This application note describes the concept and advantages ofa digital quadrature amplitude modulation (QAM) modulator that uses the direct-RF architecture to enablea cable access platform (CCAP) system.
上传时间： 2013-10-20
上传用户：drink！
This unique guide to designing digital VLSI circuits takes a top-down approach, reflecting the natureof the design process in industry. Starting with architecture design, the book explains the why andhow of digital design, using the physics that designers need to know, and no more.Covering system and component aspects, design verification, VHDL modelling, clocking, signalintegrity, layout, electricaloverstress, field-programmable logic, economic issues, and more, thescope of the book is singularly comprehensive.
标签： Integrated Digital Circuit Design
上传时间： 2013-11-04
上传用户：life840315
高的工作电压高达100V N双N沟道MOSFET同步驱动 The D810DCDC is a synchronous step-down switching regulator controller that can directly step-down voltages from up to 100V, making it ideal for telecom and automotive applications. The D810DCDC uses a constant on-time valley current control architecture to deliver very low duty cycles with accurate cycle-by-cycle current limit, without requiring a sense resistor. A precise internal reference provides 0.5% DC accuracy. A high bandwidth (25MHz) error amplifi er provides very fast line and load transient response. Large 1Ω gate drivers allow the D810DCDC to drive multiple MOSFETs for higher current applications. The operating frequency is selected by an external resistor and is compensated for variations in VIN and can also be synchronized to an external clock for switching-noise sensitive applications. Integrated bias control generates gate drive power from the input supply during start-up and when an output shortcircuit occurs, with the addition of a small external SOT23 MOSFET. When in regulation, power is derived from the output for higher effi ciency.
上传时间： 2013-10-24
上传用户：wd450412225
Battery powered applications that have a signifi cantamount of time in standby mode, require electrical circuitsto operate with a low quiescent current to preserve batterylife. The LTC3835 synchronous step-down controlleris an excellent solution with its ultralow quiescent current(80μA). Other features make it uniquely qualifi ed tosatisfy the needs of automotive applications. A wide 4Vto 36V input voltage range protects the supply againsthigh input voltage transients and is compatible with lowvoltage cold crank conditions. The constant frequencycurrent-mode architecture with high-side inductor current
上传时间： 2013-11-20
上传用户：stewart·
The LTC®4223 is a dual Hot Swap™ controller that meetsthe power requirements of the Micro TelecommunicationComputing architecture (MicroTCA) specifi cation recentlyratifi ed by the PCI Industrial Computer ManufacturersGroup (PICMG).
上传时间： 2013-10-21
上传用户：fengzimili
The LTC®3610 is a high power monolithic synchronousstep-down DC/DC regulator that can deliver up to 12Aof continuous output current from a 4V to 24V (28Vmaximum) input supply. It is a member of a high currentmonolithic regulator family (see Table 1) that featuresintegrated low RDS(ON) N-channel top and bottomMOSFETs. This results in a high effi ciency and highpower density solution with few external components.This regulator family uses a constant on-time valleycurrent mode architecture that is capable of operatingat very low duty cycles at high frequency and with veryfast transient response. All are available in low profi le(0.9mm max) QFN packages.
上传时间： 2013-11-07
上传用户：moerwang
Removing output capacitors saves money and boardspace. Linear Technology’s OPTI-LOOPTM architectureallows you to use the output capacitors of your choice andcompensate the control loop for optimum transientresponse and loop stability. Figure 1 shows the dramaticimprovement possible with the OPTI-LOOP architecture.With the improvement shown in Figure 1, less capacitance
上传时间： 2013-12-15
上传用户：fanboynet
当今电子系统如高端处理器及记忆体，对电源的需求是趋向更低电压、更高电流的应用。同时、对负载的反应速度也要提高。因此功率系统工程师要面对的挑战，是要设计出符合系统要求的细小、价廉但高效率的电源系统。而这些要求都不是传统功率架构能够完全满足的。Vicor提出的分比功率架构(Factorized Power architecture FPA)以及一系列的整合功率元件，可提供革命性的功率转换方案，应付以上提及的各项挑战。这些功率元件称为V•I晶片。
上传时间： 2013-11-15
上传用户：yan2267246
The P89LPC912/913/914 are single-chip microcontrollers in low-cost 14-pin packages, based on a high performance processor architecture that executes instructions in two to four clocks, six times the rate of standard 80C51 devices. Many system level functions have been incorporated into the P89LPC912/913/914 in order to reduce component count, board space, and system cost.
上传时间： 2013-10-12
上传用户：司令部正军级
