STM32L053C8T6數據手冊Features ? Ultra-low-power platform – 1.65 V to 3.6 V power supply – -40 to 125 °C temperature range – 0.27 μA Standby mode (2 wakeup pins) – 0.4 μA Stop mode (16 wakeup lines) – 0.8 μA Stop mode + RTC + 8 KB RAM retention – 139 μA/MHz Run mode at 32 MHz – 3.5 μs wakeup time (from RAM) – 5 μs wakeup time (from Flash) ? Core: ARM? 32-bit Cortex?-M0+ with MPU – From 32 kHz up to 32 MHz max. – 0.95 DMIPS/MHz ? Reset and supply management – Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds – Ultralow power POR/PDR – Programmable voltage detector (PVD) ? Clock sources – 1 to 25 MHz crystal oscillator – 32 kHz oscillator for RTC with calibration – High speed internal 16 MHz factory-trimmed RC (+/- 1%) – Internal low-power 37 kHz RC – Internal multispeed low-power 65 kHz to 4.2 MHz RC – PLL for CPU clock ? Pre-programmed bootloader – USART, SPI supported ? Development support – Serial wire debug supported ? Up to 51 fast I/Os (45 I/Os 5V tolerant) ? Memories – Up to 64 KB Flash with ECC – 8KB RAM – 2 KB of data EEPROM with ECC – 20-byte backup register
標簽： stm32l053c8t6
上傳時間： 2022-02-06
上傳用戶：
ADC模數轉換器件Altium Designer AD原理圖庫元件庫SV text has been written to file : 4.4 - ADC模數轉換器件.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
標簽： adc 模數轉換 altium designer
上傳時間： 2022-03-13
上傳用戶：
基于FPGA設計的相關論文資料大全 84篇用FPGA實現FFT的研究 劉朝暉 韓月秋 摘 要 目的 針對高速數字信號處理的要求，給出了用現場可編程門陣列(FPGA)實現的 快速傅里葉變換(FFT)方案.方法 算法為按時間抽取的基4算法，采用遞歸結構的塊浮點運 算方案，蝶算過程只擴展兩個符號位以適應雷達信號處理的特點，乘法器由陣列乘法器實 現.結果 采用流水方式保證系統的速度，使取數據、計算旋轉因子、復乘、DFT等操作協 調一致，在計算、通信和存儲間取得平衡，避免了瓶頸的出現.結論 實驗表明，用FPGA 實現高速數字信號處理的算法是一個可行的方案. 關鍵詞 離散傅里葉變換； 快速傅里葉變換； 塊浮點運算； 可編程門陣列 分類號 TP39； TN957.511 Implementation of FFT with FPGA Technology Liu Zhaohui Han Yueqiu (Department of Electronics Engineering, Beijing Institute of Technology, Beijing 100081) Abstract Aim To propose a scheme for implementing FFT with FPGA in accor-dance with the requirement for high speed digital signal processing. Methods The structure of FPGA and requirement of system were considered in the experiment, radix-4 algorithm of DIT and recursive structure were adopted. The group float point arithmetic operation was used in the butterfly and the array multiplier was used to realize multiplication. Results The pipeline pattern was used to ensure the system speed, it made fetching data, calculating twiddle factor, complex multiplication and D
標簽： fpga
上傳時間： 2022-03-23
上傳用戶：
以AT89S52單片機為控制核心,采用電容降壓技術,Buck電路拓撲,PWM驅動模塊和功率器件散熱設計,通過高速的數據采集、主功率輸入輸出模塊和控制模塊,設計一種新型智能車載充電器.在充電過程中,通過負脈沖瞬間放電實現對鉛酸蓄電池的再生修復,提高電池的有效容量,延長使用壽命.該充電器體積小、速度快、效率高、可靠性好.With AT89S52 single chip computer as the control core,a new type of intelligent car-carried charger was designed by using capacitance step-down technology,Buck circuit topology,PWM driving module and power device heat dissipation design,through High-Speed data acquisition,main power input and output module and control module.In the charging process,the regeneration and repair of lead-acid batteries are realized by instantaneous discharge of negative pulse,which improves the effective capacity of batteries and prolongs their service life.The charger has the advantages of small size,fast speed,high efficiency and good reliability.
標簽： 車載充電器
上傳時間： 2022-03-27
上傳用戶：
數字示波器功能強大,使用方便,但是價格相對昂貴。本文以Ti的MSP430F5529為主控器,以Altera公司的EP2C5T144C8 FPGA器件為邏輯控制部件設計數字示波器。模擬信號經程控放大、整形電路后形成方波信號送至FPGA測頻,根據頻率值選擇采用片上及片外高速AD分段采樣。FPGA控制片外AD采樣并將數據輸入到FIFO模塊中緩存,由單片機進行頻譜分析。測試表明:簡易示波器可以實現自動選檔、多采樣率采樣、高精度測頻及頻譜分析等功能。Digital oscilloscope is powerful and easy to use, but also expensive. The research group designed a low-cost digital oscilloscope, the chip of MSP430F5529 of TI is chosen as the main controller and the device of EP2C5T144C8 of Altera company is used as the logic control unit. Analog signal enter the programmable amplifier circuit, shaping circuit and other pre-processing circuit. The shaped rectangular wave signal is sent to FPGA for measure the frequency. According to the frequency value to select AD on-chip or off-chip High-Speed AD for sampling. FPGA controls the off-chip AD sampling and buffers AD data by FIFO module. The single chip microcomputer receives the data, and do FFT for spectrum analysis. The test shows that the simple oscilloscope can realize automatic gain selection, sampling at different sampling rates, high precision frequency measurement and spectrum analysis.
上傳時間： 2022-03-27
上傳用戶：
本文首次設計并驗證了基于macom三合一芯片設計的光模塊電路,該電路旨在提供一種滿足SFF-8472中規定的數字診斷功能的低成本SFP+模塊。電路采用激光器驅動、限幅放大器、控制器以及時鐘恢復單元集成的單芯片,在保證高精度數字診斷功能基礎上,實現了低成本高可靠的特點。該電路在光接收接口組件與激光器驅動和限幅放大器單元的限幅放大器部分之間接入濾波器來提高模塊的靈敏度及信號質量。在控制器單元的數字電位器的引腳上采用外加電阻的方式避免出現上電不發光的故障問題。該研究結果為下一代SFP-DD光模塊設計與開發工作,奠定了一定的理論與實踐基礎。This paper designs and validates the optical module circuit based on the MACOM Trinity chip for the first time.This circuit aims to provide a low-cost SFP module which meets the digital diagnosis function specified in SFF-8472.The circuit uses a single chip integrated with laser driver,limiting amplifier,controller and clock recovery unit.On the basis of ensuring high precision digital diagnosis function,it achieves the characteristics of low cost and high reliability.The circuit connects a filter between the optical receiving interface module and the limiting amplifier part of the laser driver and limiting amplifier unit to improve the sensitivity and signal quality of the module.The pin of the digital potentiometer in the controller unit is equipped with an external resistance to avoid the problem of power failure.The research results lay a theoretical and practical foundation for optical module design in High-Speed data center.
上傳時間： 2022-04-03
上傳用戶：
The GL823K integrates a high speed 8051 microprocessor and a high efficiency hardware engine for the best data transfer performance between USB and flash card interfaces. Its pin assignment design fits to card sockets to provide easier PCB layout. Inside the chip, it integrates 5V to 3.3V regulator, 3.3V to 1.8V regulator and power MOSFETs and it enables the function of on-chip clock source (OCCS) which means no external 12MHz XTAL is needed and that effectively reduces the total BOM cost.
上傳時間： 2022-04-27
上傳用戶：qdxqdxqdxqdx
基于DSP28035的高速永磁無刷直流電機驅動系統，包括論文和軟硬設計資料。摘要參賽作品為基于DSP28035的高速永磁無刷直流電機驅動系統。該系統以一臺額定轉速60 krpm的高速永磁無刷直流電機、交錯并聯的Buck電路以及全橋電路為硬件平臺，以DSP28035為控制核心，實現了調壓調速功能和基于坐標變換的無位置傳感器新技術。為實現該系統要求，本作品充分利用了DSP28035的資源例如：CLA模塊，模擬比較器、HPWM模塊以及AD轉換模塊等。AbstractThis work is the drive system for a high speed permanent magnet burshless dc motor based on DSP28035. The hardware platform consists of a BLDC motor(rated speed is 60000rpm), a Buck circuit and an inverter. Under the control of DSP28035, this system can achieve the goal of adjusting the motor’s speed with voltage and the function of sensorless control based on the coordinate transformation. By making full use of resources of the core, such as CLA, analog comparator, HPWM and AD converters, the whole system can meet the requirements.1 引言高速永磁無刷直流電機驅動系統由于基波頻率較高（一般在1kHZ以上），利用逆變橋斬波進行調速的控制方式通常會受到開關管開關頻率的限制，因此該系統多采用三相全橋前級加Buck電路進承擔調壓調速的功能，而三相全橋主要承擔邏輯換相的功能。然而，傳統Buck電路所需電感的體積較大，增加了系統的體積，降低了系統的功率密度。
上傳時間： 2022-05-08
上傳用戶：bluedrops
CH7525 is a low-cost, low-power semiconductor device that translates the DisplayPort signal to HDMI/DVI. This innovative DisplayPort receiver with an integrated HDMI Transmitter is specially designed to target the notebook/ultrabook, tablet device and PC market segments. Through the CH7525’s advanced decoding / encoding algorithm, the input DisplayPort High-Speed serialized multimedia data can be seamlessly converted to HDMI/DVI output.
上傳時間： 2022-06-02
上傳用戶：
RX-8801 SA Features built-in 32.768 kHz DTCXO, High Stability Supports l'C-Bus's high speed mode (400 kHz)Alarm interrupt function for day, date, hour, and minute settings Fixed-cycle timer interrupt function Time update interrupt function32.768 kHz output with OE function Auto correction of leap years Wide interface voltage range: 2.2 V to 5.5 V Wide time-keeping voltage range:1.8 V to 5.5 V Low current consumption: 0.84A/3V (Typ.)is an IC bus interface-compliant real-time clock which includes a 32.768 kHz DTCXO In addition to providing a calendar (year, month, date, day, hour, minute, second) function and a clock counter function, this module provides an abundance of other functions including an alarm function, fixed-cycle timer unction, time update interrupt function, and 32.768 kHz output function.The devices in this module are fabricated via a C-MOS process for low current consumption, which enables ong-term battery back-up.
上傳時間： 2022-06-17
上傳用戶：
