The DAC0830 is an advanced CMOS/si-cr 8-bit mutiplying DAC designed to interface directly with the 8080,8048,8085,Z80,and other popular microprocessors.A deposited silicon-chromium R-2R resistor ladder network divides the reference current and provi
电路与模拟电子技术-习题解答 第1章 电 阻 电 路 1.1 正弦交流电 交流电 1.2 电流 电压 功率 1.3 电压 电流 功率 1.4 幅值 相位 频率 1.5 幅值 相位 频率 1.6 1.7 相电压 线电压 220V 380V 1.8 星型 三角形 1.9 3 1.10 超前 滞后 同相 1.11 1.12——1.25 F F T T F F T F F T T F T T 1.26 答：（1 ） 固定电阻器可分为碳膜电阻器、金属氧化膜电阻器、金属膜电阻器、线绕电阻器和贴片式电阻器等
Joint watermarking and encryption is an upcoming security solution that
combines leading but complementary techniques to achieve an enhanced security
level.Multimed Tools Appl(2013)67: 593-606
595
work should provide robustness to the embedded waterm
