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High-Speed Pulse Generator Has
Abstract: As integrated circuits (ICs) speed up, the rise/fall times of most pulse and function generators (5ns typical) become inadequate for measuring time intervals below 20ns. You can overcome this limitation with analog switches or ad...
2009-04-20 標簽：High-Speed 1127
Digitally Controlled Sine-Wave
The circuit of Figure 1 produces an accurate variable-frequency sine wave for use as a general-purpose reference signal. It includes an 8th-order elliptic, switched-capacitor lowpass filter (IC3) that is clocked with a 100kHz square wave g...
2009-04-20 標簽：Digitally 1112
Building a Low-Cost White-Nois
Abstract: A design idea for a white-noise generator is realized and revised. Two low-noise amplifiers (LNAs) in cascade amplify the noise produced by a reverse-biased Zener diode operating in junction-breakdown mode, producing white noise ...
2009-04-20 標簽： 1394
High-Speed Random-Data Generat
Abstract: A handful of components are integrated into a circuit that creates a high-quality random data stream that generates eye diagrams up to 62.5MHz. The circuit diagram and eye diagram are shown. The eye diagram, one...
2009-04-20 標簽：High-Speed 1072
DVD Formats and How to Drive L
Abstract: This application note describes the use and features of six available DVD formats: DVD-ROM, DVD-R, DVD-RW, DVD-RAM, DVD+R, and DVD+RW. It explains how recording and rewriting work, including the bit stream coding and recording/re...
2009-04-20 標簽：DVD 1222
Ratiometric Design Overcomes t
Abstract: This application note explains how to eliminate the voltage change when a digital potentiometer is used as a voltage-divider in series with other resistors. IntroductionMechanical and electronic digit...
2009-04-20 標簽：design 845
Stack References for Higher Ad
Abstract: This application note presents three designs that use references with digital potentiometers to adjust voltages. As the designs increase in complexity and number of references, the voltage can be adjusted even higher. The MAX5436...
Calculating the Error Budget i
Abstract: This application note analyses the parameters that affect the errors in precision digital-to-analog converter (DAC) applications. The analysis focuses on the factors introduced by both the data converter and the voltage reference...
2009-04-20 標簽：Digital-to 936
Analog Switch Expands I2C Inte
Abstract: Design idea outlining how to use an I2C-controlled analog switch to triple the number of devices connected to an I2C bus. Perhaps the most effective way to gain board space and increase component density is to m...
2009-04-20 標簽：Interface 1472
Interfacing Switches and Relay
Abstract: This note discusses the effects on switches when used to connect loads. High currents through a switch degrade its quality when used as a power switch. Both mechanical switches and relays exhibit switch bounce during operation. T...
2009-04-20 標簽：Interfacin 2253
基于MSP430單片機的低功耗主動式RFID標簽設計
射頻識別（RFID）技術近年來在國內外得到了迅速發(fā)展。對于需要電池供電的便攜式系統(tǒng)，功耗也越來越受到人們的重視。本文將具體闡述基于MSP430F2012和CC1100低功耗設計理念的雙向...
Implementing an Eight-to-One U
Abstract: Many servers need to be able to switch video, keyboard, mouse, and perhaps audio signals from one of several computers to a front panel. This application note focuses on the keyboard/mouse portion, and presents a circuit for impl...
2009-04-20 標簽：usb 720
如何安裝NISTnet 軟件并在此環(huán)境下配置TDMoP產(chǎn)品
摘要：本應用筆記介紹了NISTnet軟件及其安裝，指導用戶如何將網(wǎng)絡接口卡配置為路由器，以及TDMoP產(chǎn)品在NISTnet下的配置。本文還示范了如...
2009-04-20 標簽：NISTnet 1275
使用TDMoP產(chǎn)品的抖動緩沖器補償報文時延差異(PDV)
摘要：DS34T10x和DS34S10x系列TDM-over-Packet (TDMoP)芯片采用抖動緩沖器來補償包網(wǎng)絡中存在的報文時延差異。本應用筆記將解釋PDV的含義以及它如何影響通信質量，討論抖動緩沖器的作用...
2009-04-20 標簽： 789
Maxim的TDM-over-Packet (TDMoP)設
摘要：本應用筆記介紹Maxim的TDM-over-Packet (TDMoP)設備與其它廠家TDMoP設備共同工作時的一些要求。這篇應用筆記涵蓋的Maxim TDMoP芯片包括：DS34T101，DS34T102，DS34T104，DS34T108，DS34S101，DS34S...
2009-04-20 標簽：TDMoP 2570
DS21Q44 vs. DS21Q43A
Abstract: This application note describes the hardware and software differences between the Dallas Semiconductor DS21Q44 and the DS21Q43A quad port framer devices. The DS21Q44 quad E1 framer, offers a broader feature set while retaining th...
DS21Q4x, DS215x, and DS21x5y T
Abstract: Some special functions are not derivable by using the normal transmit and receive side registers. In order to derive those functions, we need to use the test registers of the following devices: DS21Q42, DS21Q44, DS2152, DS2154, D...
DS21Q42 vs. DS21Q41B
Abstract: This application note describes the hardware and software differences between the Dallas Semiconductor DS21Q42 and the DS21Q41B quad port framer devices. The DS21Q42 enhanced quad T1 framer offers a broader feature set while reta...
2009-04-20 標簽：DS21Q42 895
Interfacing the DS21x5y to the
Abstract: This application note show how to connect the DS21x5y family of single chip transceivers (SCTs) to the Texas Instruments TSM320C54x family of digital signal processors (DSPs) utilizing the buffered serial port. Both continuous an...
2009-04-20 標簽：Interfacin 950
Tech Brief 7: DS2152 and DS215
Abstract: Tech Brief 7 provides the requirements for multiplexing four PCM streams into one 8MHz system backplane using the Dallas Semiconductor/Maxim DS2152 and DS2154 T1/E1 single chip tranceivers (SCTs). The DS2155, DS26528, DS26524, DS...
DS2141, DS21Q41, DS21Q43 8-MHz
Abstract: The application note describes how to design a backplane of 8.192MHz that simultaneously connects to any four framers of the following: DS21Q41 quad T1 framer, DS21Q43 E1 framer, DS2141 T1 controller, DS2151 T1 single chip transc...
DS2151, DS2153 Interfacing to
Abstract: This application note shows connection of the DS2151 T1 single chip transceiver and DS2153 E1 single chip transceiver to the Brooktree Bt8221 and Bt8222 (ATM Receiver/Transmitter w/UTOPIA). ...
DS2151, DS2153 Interfacing to
Abstract: Application Note 304 provides a logical diagram of the interface of the Dallas Semiconductor/Maxim DS2151 T1 single chip transceiver (SCT) and DS2153 E1 SCT to the AT&T T7270. ...
2009-04-20 標簽：Interfacin 769
DS2151, DS2153 Interfacing to
Abstract: Application note 303 provides information on connecting the DS2151 and DS2153 single chip transceivers (SCTs) to a 16-bit DSP: the Analog Devices ADSP2181. Interconnections between the DS2151 or DS2153 parallel ...
Interfacing to the Fractional
Abstract: This application note provides an example fractional T1 and E1 circuit design using Dallas Semiconductor/Maxim Communications Products T1/E1 single chip transceivers (SCTs) and T1/E1 framers. Introduction...
2009-04-20 標簽：Interfacin 1047
DS2141A, DS2143, DS2151 and DS
Abstract: This application note describes how the DS2141A, DS2143, DS2151, and DS2153 interface to the SGS-Thomson M3488. Also shown are waveforms and timing diagrams of the different pins that are used for interfacing with M3488. ...
2009-04-20 標簽：Interfacin 959
DS2141A, DS2143 Three Channel
Abstract: Application Note 306 provides the design requirements for implementing a three channel drop and insert application using the Dallas Semiconductor/Maxim DS2141A T1 framer or DS2143 E1 framer. ...
2009-04-20 標簽：DS2141A 959
DS2141A, DS2142, DS2151, DS215
Abstract: Application note 314 provides the design requirements for implementing a per-channel loopback application using the Dallas Semiconductor/Maxim DS2141A, DS2142, DS2151, or DS2153. With Elastic Store Disabled DS21...
2009-04-20 標簽：DS2141A 1241
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