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  • 基于DAC7512的数控直流恒流源设计

    为了解决磁放大器性能测试过程中,需要对其供给不同数值恒定电流的问题,设计了一种基于DAC7512和单片机的数控恒流源系统。该系统采用AT89C51作为主控器件,将计算机发送的电流控制字命令转换为D/A转换器控制字,通过模拟SPI通信接口,写D/A控制字到DAC7512,从而控制其输出相应数字电压值,经差动缩放电路、电压/电路变换 ...

    /dl/29315.html

    标签: 7512 DAC 数控直流 恒流源

    上传时间: 2014-12-27

    上传用户:invtnewer

  • 基于msp430单片机的便携式数字倾角仪的研制

    介绍了一种基于MSP430系列单片机和ADXL203加速度传感器的数字式倾角仪,它不仅可以实现水平度检测,而且可以测量00~3600范围内的任意倾角,分辨率可达O.1。。此外,由于该倾角仪输出为数字结果,因此它也可以与其他的数字设备结合起来,组合成一个功能更加强大的仪器。该数字倾角仪可广泛应用于建筑、机械、道路、桥梁、 ...

    /dl/29406.html

    标签: msp 430 单片机 便携式

    上传时间: 2013-11-14

    上传用户:lizhizheng88

  • SN65LBC170,SN75LBC170,pdf(TRIP

    The SN65LBC170 and SN75LBC170 aremonolithic integrated circuits designed forbidirectional data communication on multipointbus-transmission lines. Potential applicationsinclude serial or parallel data transmission, cabledperipheral buses with twin axial, ribbon, ortwisted-pair cabling. These devices ...

    /dl/29512.html

    标签: 170 LBC SN TRIP

    上传时间: 2013-10-13

    上传用户:ytulpx

  • 单片机与PLC的区别

    要搞清楚单片机与PLC的异同,首先得明确什幺是单片机,什幺是PLC。对此,我们简要回顾一下计算机的发展历程也许有帮助,按计算机专家的原始定义,计算机系统由五大部分--即控制单元(CU)、算术运算单元(ALU)、存储器(Memory)、输入设备(Input)、输出设备(Output)组成。早期计算机(晶体管的或集成电路的,不包括电 ...

    /dl/29623.html

    标签: PLC 单片机

    上传时间: 2013-10-16

    上传用户:jjj0202

  • AD9859芯片资料

    FEATURES400 MSPS internal clock speedIntegrated 10-bit DAC32-bit tuning wordPhase noise ≤ –120 dBc/Hz @ 1 kHz offset (DAC output)Excellent dynamic performance>75 dB SFDR @ 160 MHz (±100 kHz offset) AOUTSerial I/O control1.8 V power supplySoftware and hardware controlled power-down48-lead TQFP/EP ...

    /dl/29887.html

    标签: 9859 AD 芯片资料

    上传时间: 2014-12-04

    上传用户:axin881314

  • PCA9536—4位I2C和SMBus IO口产品数据手册

    The PCA9536 is an 8-pin CMOS device that provides 4 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed to enhance the NXP Semiconductors family of I2C-bus I/O expanders. I/O expanders provide a simple solution when additional I/O is needed ...

    /dl/30567.html

    标签: SMBus 9536 PCA I2C

    上传时间: 2013-10-27

    上传用户:w230825hy

  • PCA9534—带中断的低功耗8位I2C和SMBus IO口

    The PCA9534 is a 16-pin CMOS device that provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed to enhance the NXP Semiconductors family of I2C-bus I/O expanders. The improvements include higher drive capability, 5 V I/O tolerance, l ...

    /dl/30569.html

    标签: SMBus 9534 PCA I2C

    上传时间: 2013-11-17

    上传用户:vodssv

  • CAT25128-128Kb的SPI串行CMOS EEPRO

    The CAT25128 is a 128−Kb Serial CMOS EEPROM device internally organized as 16Kx8 bits. This features a 64−byte page write buffer and supports the Serial Peripheral Interface (SPI) protocol. The device is enabled through a Chip Select (CS) input. In addition, the required bus signals are ...

    /dl/30683.html

    标签: 25128 EEPRO CMOS CAT

    上传时间: 2013-11-15

    上传用户:fklinran

  • CAT823 CAT824 CAT825 带看门狗和手动复位

    The CAT823, CAT824, and CAT825 provide basic reset and monitoring functions for the electronic systems. Each device monitors the system voltage and maintains a reset output until that voltage reaches the device’s specified trip value and then maintains the reset output active condition until the de ...

    /dl/30689.html

    标签: CAT 823 824 825

    上传时间: 2014-11-18

    上传用户:BOBOniu

  • PAM2862 1A LED Driver with Int

    The PAM2862 is a continuous mode inductivestep-down converter, designed for driving singleor multiple series connected LEDs efficientlyfrom a voltage source higher than the LEDvoltage. The device operates from an inputupply between 6V and 30V and provides anexternally adjustable output current of up ...

    /dl/30962.html

    标签: Driver 2862 with PAM

    上传时间: 2013-11-16

    上传用户:司令部正军级