数字万用表系列

GC7246A是双竞公司开发的一种低电压供电的三位半A/D转换集成电路。使用GC7246A可构成3V电池供电的液晶显示数字表头或液晶显示数字万用表，是替代9V产品7106的理想升级产品。GC7246A除包含7106的全部功能外，还具有以下特征：仅用2节7号干电池或一粒3V锂电池即可长期稳定工作；片内含有内部时钟发生器，可通过外接一个电阻微调时钟频率；片内设计了精密带隙基准源，使得基准信号的温漂和噪声大为改善；片内设计了负电源产生电路，对外最大负载电流可达2mA。和GC7240B相比，GC7246A增加了通断测试报警功能。为适应国际和国内数字多用表2009年新的技术标准，GC7246A芯片内部设

Sungine

双竞

General Purpose Regulator

文件：358.1 Kbytes 页数：10 Pages

Holtek

合泰

14 GHz, 123 W CW, CONDUCTION COOLING, MINIMUM SIZE

GENERAL DESCRIPTION NEC LD7246A is PPM-focused traveling wave tube designed for use as final amplifier in the earth-to-satellite communications transmitter. This is capable of delivering an output power of 130 W over the range of 13.75 to 14.5 GHz. It provides a high power gain of 53 dB at 123

文件：44.39 Kbytes 页数：4 Pages

NEC

瑞萨

14 GHz, 123 W CW, CONDUCTION COOLING, MINIMUM SIZE

GENERAL DESCRIPTION NEC LD7246A is PPM-focused traveling wave tube designed for use as final amplifier in the earth-to-satellite communications transmitter. This is capable of delivering an output power of 130 W over the range of 13.75 to 14.5 GHz. It provides a high power gain of 53 dB at 123

文件：44.39 Kbytes 页数：4 Pages

NEC

瑞萨