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DESCRIPTION
The Texas Instruments MSP430 family of ultra-low-power microcontrollers consists of several devices featuring
different sets of peripherals targeted for various applications. The architecture, combined with five low-power
modes, is optimized to achieve extended battery life in portable measurement applications. The device features a
powerful 16-bit RISC CPU, 16-bit registers, and constant generators that contribute to maximum code efficiency.
The digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less than 1 μs.
The MSP430G2x13 and MSP430G2x53 series are ultra-low-power mixed signal microcontrollers with built-in 16-
bit timers, up to 24 I/O capacitive-touch enabled pins, a versatile analog comparator, and built-in communication
capability using the universal serial communication interface. In addition the MSP430G2x53 family members
have a 10-bit analog-to-digital (A/D) converter. For configuration details see Table 1.
Typical applications include low-cost sensor systems that capture analog signals, convert them to digital values,
and then process the data for display or for transmission to a host system.
標(biāo)簽：
G2553
2553
430G
MSP
430
上傳時(shí)間：
2018-12-25
上傳用戶：ygyh
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The continued reduction of integrated circuit feature sizes and
commensurate improvements in device performance are fueling the progress
to higher functionality and new application areas. For example, over the last
15 years, the performance of microprocessors has increased 1000 times.
Analog circuit performance has also improved, albeit at a slower pace. For
example, over the same period the speed/resolution figure-of-merit of
analog-to-digital converters improved by only a factor 10.
標(biāo)簽：
Digitally
Assisted
Pipeline
ADCs
上傳時(shí)間：
2020-05-27
上傳用戶：shancjb
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Software defined radio (SDR) is an exciting new field for the wireless indus-
try; it is gaining momentum and beginning to be included in commercial
and defense products. The technology offers the potential to revolutionize
the way radios are designed, manufactured, deployed, and used. SDR prom-
ises to increase flexibility, extend hardware lifetime, lower costs, and reduce
time to market
標(biāo)簽：
Software
Defined
Radio
for
3G
上傳時(shí)間：
2020-06-01
上傳用戶：shancjb
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T
his book covers basic communications theory and practical imple-
mentation of transmitters and receivers. In so doing, I focus on dig-
ital modulation, demodulation methods, probabilities, detection of
digital signals, and spread spectrum system design and analysis. This book
was written for those who want a good understanding of the basic prin-
ciples of digital wireless communication systems, including spread spec-
trum techniques. This book also provides a good intuitive and practical
approach to digital communications. Therefore it is a valuable resource for
anyoneinvolvedinwirelesscommunicationsandtransceiverdesignfordig-
ital communications. The reader will gain a broad understanding of basic
communication principles for transceiver design, digital communications,
and spread spectrum, along with examples of many types of commercial
and military data link systems.
標(biāo)簽：
Transceiver
System
Design
上傳時(shí)間：
2020-06-01
上傳用戶：shancjb
-
In this book we focus on the basic signal processing that underlies current and
future ultra wideband systems. By looking at signal processing in this way we
hope this text will be useful even as UWB applications mature and change or
regulations regarding ultra wideband systems are modified. The current UWB
field is extremely dynamic, with new techniques and ideas being presented at every
communications and signal-processing conference. The basic signal-processing
techniques presented in this text though will not change for some time to come.
Thus, we have taken a somewhat theoretical approach, which we believe is longer
lasting and more useful to the reader in the long term than an up-to-the-minute
summary that is out of date as soon as it is published.
標(biāo)簽：
Wideband
Signals
Systems
Ultra
1st
上傳時(shí)間：
2020-06-01
上傳用戶：shancjb
-
Visible light communications (VLC) is the name given to an optical wireless
communication system that carries information by modulating light in the visible spectrum
(400–700 nm) that is principally used for illumination [1–3]. The communications signal
is encoded on top of the illumination light. Interest in VLC has grown rapidly with the
growth of high power light emitting diodes (LEDs) in the visible spectrum. The
motivation to use the illumination light for communication is to save energy by exploiting
the illumination to carry information and, at the same time, to use technology that is
“green” in comparison to radio frequency (RF) technology, while using the existing
infrastructure of the lighting system.
標(biāo)簽：
Communication
Visible
Light
上傳時(shí)間：
2020-06-01
上傳用戶：shancjb
-
Although doing science is at the heart of discovery, the effort would have
very limited consequence in the long term without writingscience. As a social
enterprise that depends on collaboration, scientific inquiry requires its practi-
tioners to write on a regular basis. From time to time, some members of the
scientific community have been critical of the overall quality of writing by re-
searchers.
標(biāo)簽：
Goldbort_Writing
Science
for
上傳時(shí)間：
2020-06-09
上傳用戶：shancjb
-
科學(xué)家與工程師數(shù)字信號(hào)處理指南The Scientist and Engineer Guide to Digital Signal Processing.pdf
標(biāo)簽：
數(shù)字信號(hào)處理
上傳時(shí)間：
2021-11-11
上傳用戶：
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ADC模數(shù)轉(zhuǎn)換器件Altium Designer AD原理圖庫(kù)元件庫(kù)SV text has been written to file : 4.4 - ADC模數(shù)轉(zhuǎn)換器件.csvLibrary Component Count : 29Name Description----------------------------------------------------------------------------------------------------ADC0800 National 8-Bit Analog to Digital ConverterADC0809 ADC0831 ADCADC0832 ADC8 Generic 8-Bit A/D ConverterCLC532 High-Speed 2:1 Analog MultiplexerCS5511 National 16-Bit Analog to Digital ConverterDAC8 Generic 8-Bit D/A ConverterEL1501 Differential line Driver/ReceiverEL2082 Current-Mode MultiplierEL4083 Current Mode Four Quadrant MultiplierEL4089 DC Restored Video AmplifierEL4094 Video Gain Control/FaderEL4095 Video Gain Contol/Fader/MultiplexerICL7106 LMC6953_NSC PCI Local Bus Power SupervisorMAX4147 300MHz, Low-Power, High-Output-Current, Differential Line DriverMAX4158 350MHz 2-Channel Video Multiplexer-AmplifierMAX4159 350MHz 2-Channel Video Multiplexer-AmplifierMAX4258 250MHz, 2-Channel Video Multiplexer-AmplifierMAX4259 250MHz 2-Channel Video Multiplexer-AmplifierMAX951 Ultra-Low-Power, Single-Supply Op Amp + Comparator + ReferenceMAX952 Ultra-Low-Power, Single-Supply Op Amp + Comparator + ReferenceMC1496 Balanced Modulator/DemodulatorPLL100k Generic Phase Locked LoopPLL10k Generic Phase Locked LoopPLL5k Generic Phase Locked LoopPLLx Generic Phase Locked Loop水位計(jì)
標(biāo)簽：
adc
模數(shù)轉(zhuǎn)換
altium designer
上傳時(shí)間：
2022-03-13
上傳用戶：
-
電學(xué)中的測(cè)量技術(shù)涉及范圍非常廣,電流測(cè)量在電學(xué)計(jì)量中占有非常重要的位置。如何精確地進(jìn)行電流測(cè)量是精密測(cè)量的一大難題。傳統(tǒng)的電流檢測(cè)電路多采用運(yùn)算放大芯片與片外電流檢測(cè)電路相結(jié)合的方式,電路集成度很低,需要較多的接口和資源才能完成對(duì)電路的檢測(cè)。本文把所有電路部分都集成在一塊芯片上,包括檢測(cè)電阻,運(yùn)算放大器電路及模擬轉(zhuǎn)數(shù)字轉(zhuǎn)換電路,從而在電路內(nèi)部可以進(jìn)行電流檢測(cè),使電路更好的集成化。前置電路使用二級(jí)共源共柵結(jié)構(gòu)的運(yùn)算放大器,減小溝道長(zhǎng)度調(diào)制效應(yīng)造成的電流誤差。10位SAR ADC中采用電容驅(qū)動(dòng)能力強(qiáng)的傳輸門保證了模數(shù)轉(zhuǎn)化器的有效精度。比較器模塊采用再生鎖存器與遲滯比較器作為基礎(chǔ)單元組合解決精密測(cè)量的問(wèn)題。本設(shè)計(jì)可以作為嵌入芯片內(nèi)的一小部分而檢測(cè)芯片中的微小電流1mA~100mA,工作電壓在1.8v左右,電流檢測(cè)精度預(yù)期達(dá)到10uA的需求。The measurement technology in electricity involves a wide range,and current measurement plays a very important position in electrical measurement.How to accurately measure current is a big problem in precision measurement. The traditional current detecting circuit adopts the combination of the operational amplifier chip and theoff-chip current detecting circuit, The circuit integration is very low, and more interfaces and resources are needed tocomplete the circuit detection.This topic integrates all the circuit parts into one chip, including detection resistance, operational amplifier circuit andanalog to digital conversion circuit. Highly integrated circuit makes the external resources on the chip more intensive,so that current detection can be carried out inside the circuit, so that the circuit can be better integrated. Thefront-end circuit of this project uses two-stage cascade operational amplifier and cascade tube to reduce the currenterror caused by channel length modulation effect. In 10-bit SAR ADC, the transmission gate with strong capacitivedriving ability ensures the effective accuracy of the analog-to-digital converter. Comparator module uses regenerativelatch and hysteresis comparator as basic unit to solve the difficult problem of precision measurement. This topic can beused as a small part of the embedded chip to detect the micro-current in the chip 1 mA~100 mA, the working voltageis about 1.8v, and the current detection accuracy is expected to reach the requirement of 10 uA.
標(biāo)簽：
電流檢測(cè)
電路
運(yùn)算放大器
adc
上傳時(shí)間：
2022-04-03
上傳用戶：
